@article{ASENS_1981_4_14_3_339_0,
     author = {Tsukamoto, Chiaki},
     title = {Infinitesimal {Blaschke} conjectures on projective spaces},
     journal = {Annales scientifiques de l'\'Ecole Normale Sup\'erieure},
     pages = {339--356},
     publisher = {Elsevier},
     volume = {Ser. 4, 14},
     number = {3},
     year = {1981},
     doi = {10.24033/asens.1409},
     mrnumber = {84k:58055},
     zbl = {0481.53041},
     language = {en},
     url = {http://www.numdam.org/articles/10.24033/asens.1409/}
}