%0 Journal Article %A V. M. Anikin %T Scientific history fragments of the Big physical auditorium of Saratov University. Two Congresses -- two of Vavilovs %J Izvestiya VUZ. Applied Nonlinear Dynamics %D 2020 %P 547-566 %V 28 %N 5 %I mathdoc %U http://geodesic.mathdoc.fr/item/IVP_2020_28_5_a7/ %G ru %F IVP_2020_28_5_a7