@article{RSMUP_1960__30__52_0,
     author = {Rota, G. C.},
     title = {On the representation of averaging operators},
     journal = {Rendiconti del Seminario Matematico della Universit\`a di Padova},
     pages = {52--64},
     publisher = {Seminario Matematico of the University of Padua},
     volume = {30},
     year = {1960},
     mrnumber = {112041},
     zbl = {0096.09101},
     language = {en},
     url = {http://archive.numdam.org/item/RSMUP_1960__30__52_0/}
}