@article{SM_2019_210_10_a5,
     author = {A. M. Mazhuga},
     title = {Free products of groups are strongly verbally closed},
     journal = {Sbornik. Mathematics},
     pages = {1456--1492},
     year = {2019},
     volume = {210},
     number = {10},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/SM_2019_210_10_a5/}
}