The volume of the sample as a factor of survival of sturgeon spermatozoa after cryopreservationAleksandra Krasilnikova, Elena Ponomareva, Svetlana Shvedova, Magomed Magomedov, Dmitry Rudoy and Anastasiya OlshevskayaE3S Web Conf., 210 (2020) 07010DOI: https://doi.org/10.1051/e3sconf/202021007010