@article{RSMUP_2020__144__271_0, author = {Wald, Burkhard}, title = {Linear forms in a playful universe}, journal = {Rendiconti del Seminario Matematico della Universit\`a di Padova}, pages = {271--279}, volume = {144}, year = {2020}, doi = {10.4171/rsmup/69}, mrnumber = {4186459}, zbl = {1486.03092}, language = {en}, url = {http://archive.numdam.org/articles/10.4171/rsmup/69/} }