Warning message Node revision 508 not found in node Mechanical properties study for graphene sheets of various size . Perharps it was deleted. Komissarova Nataliya Evgen'evna Russia Saratov State University 1, Saratov State University, Russia, 410012, Saratov, Astrahanskaya st., 83 NataliyaKomissarova@yandex.ru Author's articles Lebesgue functions for Haar system on compact zero-dimensional group