@article{PismaZhETF.52.755, title = {Initial stages of the melting of a GaAs surface by femtosecond laser pulses: Study by second-harmonic-generation method}, author = {Govorkov, S. V and Shumai, I. L. and Rudolph, W. and Schroder, T.}, journal = {πΙΣΨΝΑ Χ φότζ}, volume = {52}, issue = {2}, pages = {755}, year = {1990}, doi = {}, url = {http://jetpletters.ru/ps/0/article_17452.shtml}, }