TY - JOUR AU - David Penn AU - Marvin Cohen C2 - Physical Review B (Condensed Matter and Materials Physics) DA - 1992-01-01 LA - en M1 - 46 PB - Physical Review B (Condensed Matter and Materials Physics) PY - 1992 TI - Effects of Broadening on the BCS Theory in the Presence of Van Hove Singularities ER -