@article{700057,
     title = {The asymptotic behavior at the large time of solutions of some mathematical physics problems},
     booktitle = {Proceedings of Equadiff III},
     series = {GDML\_Books},
     publisher = {Univ. J. E. Purkyn\v e - P\v r\'\i rodov\v edeck\'a fakulta},
     address = {Brno},
     year = {1973},
     pages = {189-197},
     mrnumber = {MR0358044},
     zbl = {0319.35012},
     url = {http://dml.mathdoc.fr/item/700057}
}

Maslennikova, V. N. The asymptotic behavior at the large time of solutions of some mathematical physics problems, dans Proceedings of Equadiff III, GDML_Books,  (1973), pp. 189-197. http://gdmltest.u-ga.fr/item/700057/