@misc{shantarovich_on_possibility_2003, 
author={Shantarovich, V.P.,Yampolskii, Y.,Sivergin, Y.M.,Salamatina, O.B.,Gustow, V.W.,Hofmann, D.},
title={On possibility of study nano-structure of free volume in polymers by positron annihilation method},
year={2003},
howpublished = {journal article},
note = {Online available at: \url{} (DOI). Shantarovich, V.; Yampolskii, Y.; Sivergin, Y.; Salamatina, O.; Gustow, V.; Hofmann, D.: On possibility of study nano-structure of free volume in polymers by positron annihilation method. Khimicheskaya Fizika (RUS). 2003. vol. 22, no. 2, 87-101.}}