Gratitude


I express my deepest gratitude to all my friends and relatives who took an active part in the work on this book. Thank you all for your kind and helpful advice, valuable information, technical, and financial support.

Special thanks to my wife Svetlana Dubyanskaya, as well as to my parents, Father – Igor Grigoryevich (1930 – 2020) and Mother – Tamara Alekseevna (1934 – 2019).

Special thanks to Anupriya Wijayaweera for arranging the publication of this book. Thanks go to Alexander Bukreev for the cover design.


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