%0 journal article %@ 0207-401X %A Shantarovich, V.P., Yampolskii, Y., Sivergin, Y.M., Salamatina, O.B., Gustow, V.W., Hofmann, D. %D 2003 %J Khimicheskaya Fizika (RUS) %N 2 %P 87-101 %T On possibility of study nano-structure of free volume in polymers by positron annihilation method %U 2 %X