@article{JTNB_2015__27_3_815_0,
     author = {Yanai, Hiromichi},
     title = {On the index of degeneracy of a {CM} abelian variety},
     journal = {Journal de th\'eorie des nombres de Bordeaux},
     pages = {815--820},
     publisher = {Soci\'et\'e Arithm\'etique de Bordeaux},
     volume = {27},
     number = {3},
     year = {2015},
     doi = {10.5802/jtnb.925},
     language = {en},
     url = {http://www.numdam.org/articles/10.5802/jtnb.925/}
}