@incollection{AST_1976__40__177_0,
     author = {Shiokawa, Ietaka},
     title = {Ergodic properties of a complex continued fraction transformation},
     booktitle = {International conference on dynamical systems in mathematical physics},
     series = {Ast\'erisque},
     pages = {177--179},
     publisher = {Soci\'et\'e math\'ematique de France},
     number = {40},
     year = {1976},
     mrnumber = {450205},
     zbl = {0349.10044},
     language = {en},
     url = {http://www.numdam.org/item/AST_1976__40__177_0/}
}