@article{RSMUP_1976__55__81_0,
     author = {Brenner, J. L. and Carlitz, L.},
     title = {Covering theorems for finite nonabelian simple groups. {III.} - {Solutions} of the equation $\alpha x^2 + \beta t^2 + \gamma t^{-2} = a$ in a finite field},
     journal = {Rendiconti del Seminario Matematico della Universit\`a di Padova},
     pages = {81--90},
     publisher = {Seminario Matematico of the University of Padua},
     volume = {55},
     year = {1976},
     zbl = {0352.20003},
     mrnumber = {457549},
     language = {en},
     url = {http://archive.numdam.org/item/RSMUP_1976__55__81_0/}
}