@article{SM_1998_189_10_a6,
     author = {V. A. Smirnov},
     title = {Homotopy type and $A_\infty$-group structure},
     journal = {Sbornik. Mathematics},
     pages = {1563--1572},
     publisher = {mathdoc},
     volume = {189},
     number = {10},
     year = {1998},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/SM_1998_189_10_a6/}
}