Academician of the NAS of Ukraine Vadym Evgenovych Lashkaryov: the Outstanding Physicist of the 20-th Century, the Discoverer of a p-n-Junction (to the 55-th Anniversary of the Foundation of the Institute of Semiconductor Physics of the NAS of Ukraine). Ukr. J. Phys. 2019;61(2):181. doi:10.15407/ujpe61.02.0181