@article{PismaZhETF.26.725,
    title = {Double resonance microwave transitions in intermediate complexes in the annihilation of triplet excitons},
    author = {Frankevich, E. L. and Pristupa, A. I. and Lesin, V. I.},
    journal = {Письма в ЖЭТФ},
    volume = {26},
    issue = {11},
    pages = {725},
    year = {1977},
    doi = {},
    url = {http://jetpletters.ru/ps/0/article_20989.shtml},
}