Furrer, A.Allenspach, P.Mesot, J.Staub, U.2012-09-172012-09-172012-09-17199010.1016/0921-4534(90)90085-Shttps://infoscience.epfl.ch/handle/20.500.14299/85433The crystalline electric field as a direct probe for the electron doping process in Nd2-χCeχCuO4text::journal::journal article::research article