@article{SM_2006_197_10_a5,
     author = {Ant. A. Klyachko},
     title = {$SQ$-universality of one-relator relative presentations},
     journal = {Sbornik. Mathematics},
     pages = {1489--1508},
     publisher = {mathdoc},
     volume = {197},
     number = {10},
     year = {2006},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/SM_2006_197_10_a5/}
}