@article{SM_1973_21_2_a6,
     author = {S. V. Matveev},
     title = {Special spines of piecewise linear manifolds},
     journal = {Sbornik. Mathematics},
     pages = {279--291},
     publisher = {mathdoc},
     volume = {21},
     number = {2},
     year = {1973},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/SM_1973_21_2_a6/}
}