@article{ASENS_2009_4_42_4_531_0,
     author = {Catanese, Fabrizio and Mangolte, Fr\'ed\'eric},
     title = {Real singular {Del} {Pezzo} surfaces and 3-folds fibred by rational curves, {II}},
     journal = {Annales scientifiques de l'\'Ecole Normale Sup\'erieure},
     pages = {531--557},
     publisher = {Soci\'et\'e math\'ematique de France},
     volume = {Ser. 4, 42},
     number = {4},
     year = {2009},
     doi = {10.24033/asens.2102},
     mrnumber = {2568875},
     zbl = {1183.14075},
     language = {en},
     url = {http://archive.numdam.org/articles/10.24033/asens.2102/}
}