TY - JOUR ID - 10442/6425 A1 - Nicolaides, C. A. A1 - A1 - Beck, D. R. Y1 - 1977/// T1 - Variational Method for Calculating Energies and Widths of Resonances JF - Physics Letters A VL - 60 IS - 2 SN - 0375-9601 U3 - 10.1016/0375-9601(77)90390-5 PB - Elsevier BV, North-Holland SP - 92–92EP - UR - https://hdl.handle.net/10442/6425 ER -