@article{RSMUP_1978__60__183_0,
     author = {Barlotti, A. and Schreiber, E. and Strambach, K.},
     title = {The group of projectivities in free-like geometries},
     journal = {Rendiconti del Seminario Matematico della Universit\`a di Padova},
     pages = {183--200},
     publisher = {Seminario Matematico of the University of Padua},
     volume = {60},
     year = {1978},
     mrnumber = {555963},
     zbl = {0433.51003},
     language = {en},
     url = {http://archive.numdam.org/item/RSMUP_1978__60__183_0/}
}