uk %D0%92%D1%96%D0%BA%D1%96%D0%BF%D0%B5%D0%B4%D1%96%D1%8F:%D0%9A%D0%BD%D0%B0%D0%B9%D0%BF%D0%B0 (%D0%BF%D0%BE%D0%BB%D1%96%D1%82%D0%B8%D0%BA%D0%B8) %D0%A8%D0%B0%D0%B1%D0%BB%D0%BE%D0%BD:Cite doi 10.1098.2Frsbm.1952.0013