In 2006 the International scientific symposium took place, dedicated to the 170th anniversary of N.P. Petrov, in which more than 100 leading scientists from Russia, Germany, Czech Republic, India, USA, etc.
\
In 2006 the International scientific symposium took place, dedicated to the 170th anniversary of N.P. Petrov, in which more than 100 leading scientists from Russia, Germany, Czech Republic, India, USA, etc.
\