@article{JETPL.112.189, title = {Phase Transitions in Frustrated Slightly Nonstoichiometric ErBaCo4O7 + x (x — 0 and 0.03) Cobaltites}, author = {Kazei, Z. A. and Snegirev, V. V. and Stolyarenko, M. S.}, journal = {JETP Lett.}, volume = {112}, issue = {3}, pages = {180}, year = {2020}, doi = {10.1134/S0021364020150059}, url = {http://jetpletters.ru/ps/dx/10.31857/S1234567820150082}, note = {[Pisma v ZhETF 112, 189 (2020)]} }