@article{RSMUP_1991__86__157_0,
     author = {Sforza, Daniela},
     title = {On a class of second order integrodifferential equations},
     journal = {Rendiconti del Seminario Matematico della Universit\`a di Padova},
     pages = {157--174},
     publisher = {Seminario Matematico of the University of Padua},
     volume = {86},
     year = {1991},
     mrnumber = {1154105},
     zbl = {0757.45012},
     language = {en},
     url = {http://www.numdam.org/item/RSMUP_1991__86__157_0/}
}