@article{PismaZhETF.58.734,
    title = {Singularity in the quasiparticle interaction function in a 2D Fermi gas},
    author = {Baranov, M. A. and Kagan, M. Yu. and Mar'enko, M. S.},
    journal = {πΙΣΨΝΑ Χ φότζ},
    volume = {58},
    issue = {9},
    pages = {734},
    year = {1993},
    doi = {},
    url = {http://jetpletters.ru/ps/0/article_18000.shtml},
}