@misc{indiciae29ac7b41a112, title = {Generating functional for electron-phonon systems from functional integrals with one-sided boundary conditions.}, author = {J Florencio}, year = {1987}, doi = {10.1103/physrevb.35.452}, url = {https://pubmed.ncbi.nlm.nih.gov/9941424/}, note = {Source identifier: 9941424} }