PHENOLOGY OF SOME SPECIES FROM THE GENUS OPUNTIA (TOURNEF.) MILL. (CACTACEAE JUSS.) IN CONDITIONS OF COVERED SOILSIN APSHERON
Vestnik Moskovskogo gosudarstvennogo oblastnogo universiteta. Seriâ: Estestvennye nauki/Vestnik Moskovskogo gosudarstvennogo oblastnogo universiteta. Seriâ Estestvennye nauki