@Book{BVMC:713147, author = {Ramírez, Sergio}, title = {Balcanes y volcanes [La pluma debajo del sombrero]}, publisher = {Alicante : Biblioteca Virtual Miguel de Cervantes, 2015}, year = {2015}, url = {https://www.cervantesvirtual.com/nd/ark:/59851/bmcvq4x9} }