@Book{BVMC:226319, author = {March, Jacme}, title = {Qüestió sobre l'estiu i l'hivern}, publisher = {Alacant : Biblioteca Virtual Joan Lluís Vives, 2005}, year = {2005}, url = {https://www.cervantesvirtual.com/nd/ark:/59851/bmcjh3g7} }