Title: Tezisy VI zonalʹnogo soveshchanii͡a-seminara zavedui͡ushchikh kafedrami i vedushchikh prepodavateleĭ matematiki vuzov Belorusskoĭ, Latviĭskoĭ, Litovskoĭ, Ėstonskoĭ SSR i Kaliningradskoĭ oblasti RSFSR
Subjects: Congresses, Mathematics, Study and teaching