@article{RSMUP_1999__101__95_0,
     author = {Held, Dieter and De Angelis, J\"org Hrab\v{e} and Pav\v{c}evi\'c, Mario-Osvin},
     title = {$PSp_4$(3) as a symmetric (36, 15, 6)-design},
     journal = {Rendiconti del Seminario Matematico della Universit\`a di Padova},
     pages = {95--98},
     publisher = {Seminario Matematico of the University of Padua},
     volume = {101},
     year = {1999},
     mrnumber = {1705282},
     zbl = {0935.05007},
     language = {en},
     url = {http://www.numdam.org/item/RSMUP_1999__101__95_0/}
}