Possibly, in the life of every scientist there were events, retained in our memory for all life. Just that very case happened in June 1986. At that time I worked as Director of the Institute for Cybernetics and Information Processes, Academy of Sciences of GDR. In June 1986 the Soviet Embassy in DDR asked me to meet with the Soviet scientist, Professor Alexey Stakhov, who was returning back to Soviet Union (through Berlin) after his work at the Jena University as Visiting-Professor. At that time I was very busy, however I promised to the representative of the Soviet Embassy to spend about 20 minutes for the meeting with Prof. Stakhov.

I remember that exactly at the fixed time, a high and very energetic man enters my cabinet. He introduced himself as Professor Alexey Stakhov and right away took the initiative in his hand. He showed me his books “Introduction into Algorithmic Measurement Theory” (1977), “Algorithmic Measurement Theory” (1979), and “Codes of the Golden Proportion” (1984) and begun to tell me on his unusual scientific ideas, touched on a new measurement theory – Algorithmic Measurement Theory and a new computer arithmetic – Fibonacci arithmetic. He told me on his successful lecture “Algorithmic Measurement Theory” at the plenary session of the International symposium “Intellectual Measurements” (Jena-1986). He informed me also on the development of his unique scientific project “Fibonacci computers” in Soviet Union and on wide patenting his inventions in the field of the Fibonacci computers abroad (USA, Japan, England, France, Canada, FRG, DDR, Poland). I remember that I changed all my schedule and we spent with Prof. Stakhov instead 20 minutes about 3 hours.

The main conclusion I made from this meeting that Professor Stakhov is a pioneer of an absolutely new scientific direction in measurement theory and computer science and that Stakhov’s ideas (algorithmic measurement theory and Fibonacci computers) are important ideas, which may have fundamental impact on the development of modern science, including theoretical metrology and computer science.

During our meeting I offered Prof. Stakhov to visit my institute at any time convenient for him. Unfortunately, different bureaucratic obstacles prevented to realize this proposal. And then I called to my colleagues at the Dresden Technical University with the request to invite Prof. Stakhov as Visiting-Professor of the University. This proposal was perceived in Dresden Technical University with great enthusiasm, and really in 1988 Prof. Stakhov had visited this University, where during 2 months he worked as Professor of the Heinrich Barkhausen Department, a special department for Visiting-Professors. During his stay in the GDR, Prof. Stakhov performed substantial scientific and teaching work. He lectured a special course “Fibonacci numbers and computers” for post-graduate students of the Dresden Technical University. During the scientific seminar of the Computer Science Department of the Technical University Karl-Marx-Stadt he also gave a lecture “Fibonacci numbers in Computer Science” which was meet with great interest.

Concluding his stay in the GDR Prof. Stakhov gave a speech on his scientific direction in Berlin in my Institute for Cybernetics and Information Processes. Stakhov’s speech was perceived in our Institute with great enthusiasm. After his lectures in my institute I wrote the following letter to the President of Ukrainian Academy of Sciences Boris Paton:

"The lectures of Prof. Stakhov aroused great interest. This is confirmed by very positive reviews on his lectures given by the leading scientists of the Dresden Technical University, the Technical University of Karl-Marx-Stadt, as well as specialists of the computer company "Robotron."

... I consider as my duty to draw the attention of the Academy of Sciences of Ukraine on the scientific ideas of Prof. Stakhov as having great importance for the development of several modern directions in science (including thermodynamics, mathematics and coding theory, theory of self-organizing systems, and computer science).

The Institute for Cybernetics and Information Processes of the Academy of Sciences of GDR, is ready to cooperate with Prof. Stakhov in the field of application of Fibonacci and “golden” codes for the development of Information Technology."

Later, after Prof. Stakhov’s return to Soviet Union, I unexpectedly read in the Soviet newsletter “Pravda” a comprehensive article “Here is Fibonacci!” on Stakhov’s work in the GDR what was an additional evidence of the wide recognition of his unique scientific direction in the Soviet Union and other countries.

Unfortunately, after disintegration of the Soviet Union in 1991 our scientific contacts with Prof. Stakhov were interrupted for many years. Recently I unexpectedly received a letter from Anna Sluchenkova (Canada), daughter of Prof. Stakhov. She wrote that his father lives now in Canada and that he has completed a big book “The Mathematics of Harmony. From Euclid to Contemporary Mathematics and Computer Science.” In his Acknowledgements he has written:

“The German scientist and academician Volker Kempe (Berlin, 1986) also influenced my career. Thanks to Volker Kempe, I was honored to be invited to Dresden Technical University as a visiting professor in 1988.”

Of course, it is pleasure to me that Prof. Stakhov did not forget about our meeting in Berlin in June 1986 and on my role in his invitation to the Dresden Technical University. This shows that Prof. Stakhov is not only a good scientist but also he possesses great scientific ethics and moral.

Recently, Prof. Stakhov called me in Austria and told me on his life in Canada, on the Institute of the Golden Section, headed by him since 1995, and his new scientific discoveries and achievements in the “Harmony Mathematics.”

I was surprised by his new achievements in this field. His new results in the “Harmony Mathematics” are extending the field of his scientific interests on all science on the whole. I think that Prof. Stakhov is one of the most outstanding modern scientists, who due to his scientific achievements in algorithmic measurement theory, Fibonacci computers and Harmony Mathematics promotes to the development of all fields of modern science, including mathematics, computer science and theoretical natural sciences.

Now I live in the Austrian city Graz. I know that Graz played an importamnt role in the scientific life of Prof. Stakhov. He told me that in 1976 he met in Graz with the famous Austrian mathematician Prof. Alexander Aigner, Head of the Mathematics Department of Graz University. Prof. Aigner was the first mathematician, who could evaluate Stakhov’s concept of Fibonacci computers as an alternative of modern computers. Prof. Aigner had written the letter to many Austrian scientists on Stakhov’s scientific direction what became a reason of Stakhov’s lecture on the joint session of the Austrian Cybernetics and Computer Societies. After 20 years, in 1996, Prof. Stakhov made a speech “The Golden Section and Modern Harmony Mathematics” on the session of the 7th International Conference on Fibonacci numbers and their applications (Graz, July 1996). In this lecture he proclaimed on the birth of a new mathematical theory, the Harmony Mathematics as a new interdisciplinary direction of modern science. Thus, exactly in Graz all the most original ideas Prof. Stakhov (Fibonacci computers and Harmony Mathematics) were presented by Prof. Stakhov for the first time and there they were recognized by the scientific community. I would be very glad if the book "The Mathematics of Harmony. From Euclid to Contemporary Mathematics and Computer Science" by Alexey Stakhov would be presented for the first time at the universities of Graz.

I believe that in the eve of his 70-anniversary Prof. Stakhov is full for new and unusual scientific ideas. And I would like to wish to him big health and great scientific achievements.