@misc{indiciaebdbdce8ffad0, title = {Variational approximation for two-time correlation functions in Phi 4 theory: Optimization of the dynamics.}, author = {C Martin}, year = {1995}, doi = {10.1103/physrevd.52.7121}, url = {https://pubmed.ncbi.nlm.nih.gov/10019252/}, note = {Source identifier: 10019252} }