@article{805846, author = {I Barbee and Marvin Cohen and David Penn}, title = {Limitations on a Combined Phonon -- Non-Phonon Mechanism for Superconductivity Bi2Sr3Ca1Cu2Ox}, year = {1991}, number = {161}, month = {1991-01-01 00:01:00}, publisher = {Physics Letters A}, language = {en}, }