by Masalimova, Alfiya R., Levina, Elena Y., Platonova, Raisa I., Yakubenko, Konstantin Yu, Mamitova, Natalia V., Arzumanova, Lana L., Grebennikov, Valery V., Marchuk, Nikolay N.
Published in Eurasia Journal of Mathematics, Science and Technology Education (01.08.2017)

by Nikolyukin, Stanislav V, Krasnenkova, Elena V, Yu. Yakubenko, Konstantin
Published in Opción (Maracaibo, Venezuela) (2019)