@article{SM_1993_75_2_a5,
     author = {V. V. Ryzhikov},
     title = {Mixing, rank, and minimal self-joining of actions with an invariant measure},
     journal = {Sbornik. Mathematics},
     pages = {405--427},
     publisher = {mathdoc},
     volume = {75},
     number = {2},
     year = {1993},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/SM_1993_75_2_a5/}
}