Հոդված 839 Romik S. Harutyunyan Norair M. Beylerian Louisa R. Vardanyan Razmik L. Vardanyan Macromolecular Chemistry and Physics v. 203, is. 1 212-218 2002 http://onlinelibrary.wiley.com/journal/10.1002/(ISSN)1521-3935