@article{DAN_1964_155_3_a35,
     author = {V. I. Selikhova and G. S. Markova and V. A. Kargin},
     title = {Birefringence of form in spherolites and stretched polypropylene films},
     journal = {Doklady Akademii Nauk},
     pages = {666--667},
     publisher = {mathdoc},
     volume = {155},
     number = {3},
     year = {1964},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DAN_1964_155_3_a35/}
}