@misc{indiciae846bcc45bb68, title = {Covariant Gaussian approximation. I. Formalism.}, author = {A Kovner and B Rosenstein}, year = {1989}, doi = {10.1103/physrevd.39.2332}, url = {https://pubmed.ncbi.nlm.nih.gov/9959915/}, note = {Source identifier: 9959915} }