Optimization of core phases of biolistic transformation of potato Natalya P. Malakhova, Yuriy A. Skiba, Botakoz K. Tezekbayeva, Elina R. Maltseva and Gulnara A. Ismagulova BIO Web Conf., 23 (2020) 01007 Published online: 14 August 2020 DOI: 10.1051/bioconf/20202301007