@article{PismaZhETF.6.697,
    title = {Connection Between the Antisymmetrical Exchange Interaction and the Change of Multiplicity},
    author = {Vonsovskii, S. V. and Svirskii, M. S.},
    journal = {πΙΣΨΝΑ Χ φότζ},
    volume = {6},
    issue = {6},
    pages = {697},
    year = {1967},
    doi = {},
    url = {http://jetpletters.ru/ps/0/article_25462.shtml},
}