@Misc{BVMC:260314, author = {Wensell, Ulises}, title = {Ilustraciones para "Operación Pata de Oso"}, publisher = {Alicante : Biblioteca Virtual Miguel de Cervantes, 2009}, year = {2009}, url = {https://www.cervantesvirtual.com/nd/ark:/59851/bmcsj211} }