@article{PismaZhETF.26.555,
    title = {Dispersion approach to the calculation of three-particle bound states and contributions of three-particle unitarity},
    author = {Grach, I. L. and Narodetskn, I. M. and Shmatikov, M. Zh.},
    journal = {πΙΣΨΝΑ Χ φότζ},
    volume = {26},
    issue = {7},
    pages = {555},
    year = {1977},
    doi = {},
    url = {http://jetpletters.ru/ps/0/article_20948.shtml},
}