@article{PismaZhETF.14.600, title = {Purely Rotational Spectra of Nonpolar Molecules in the Vibrational Ground State}, author = {Aliev, M. R.}, journal = {πΙΣΨΝΑ Χ φότζ}, volume = {14}, issue = {11}, pages = {600}, year = {1971}, doi = {}, url = {http://jetpletters.ru/ps/0/article_24989.shtml}, }