J. V. Ortiz, “Partial fourth order electron propagator theory,” Int. J. Quantum Chem., Quant. Chem. Symp., 34 (S22) (1988) 431-36. DOI: 10.1002/qua.560340846
J. V. Ortiz, “Partial fourth order electron propagator theory,” Int. J. Quantum Chem., Quant. Chem. Symp., 34 (S22) (1988) 431-36. DOI: 10.1002/qua.560340846
