@article{IM_1973__21_142219,
     author = {Gary M. Seitz and Paul Fong},
     title = {Groups with a {(B,} {N)-Pair} of {Rank} 2. {I.}},
     journal = {Inventiones mathematicae},
     pages = {1--58},
     publisher = {mathdoc},
     volume = {21},
     year = {1973},
     zbl = {0295.20048},
     url = {http://geodesic.mathdoc.fr/item/IM_1973__21_142219/}
}