@article{RSMUP_1990__84__123_0,
     author = {Romani, G.},
     title = {$\overset{1}{N}$-symmetric submanifolds},
     journal = {Rendiconti del Seminario Matematico della Universit\`a di Padova},
     pages = {123--134},
     publisher = {Seminario Matematico of the University of Padua},
     volume = {84},
     year = {1990},
     mrnumber = {1101287},
     zbl = {0721.53011},
     language = {en},
     url = {http://www.numdam.org/item/RSMUP_1990__84__123_0/}
}