@article{PismaZhETF.37.578, title = {Measurement of the group velocity of polaritons in anthracene crystal}, author = {Vidmont, N. A. and Maksimov, A. A. and Tartakovskii, I. I.}, journal = {πΙΣΨΝΑ Χ φότζ}, volume = {37}, issue = {12}, pages = {578}, year = {1983}, doi = {}, url = {http://jetpletters.ru/ps/0/article_22899.shtml}, }