https://books.google.es/books?id=wRBxDwAAQBAJ&pg=PT144&lpg=PT144&dq=morozevich+gelfand+2003&source=bl&ots=9CUoePgXG_&sig=ACfU3U23YyZj3AdD8R0gUTJx7NUpLQRQ5w&hl=es&sa=X&ved=2ahUKEwiuv6umuajiAhXxAmMBHSnPBXUQ6AEwCHoECAcQAQ#v=onepage&q=morozevich%20gelfand%202003&f=false
https://books.google.es/books?id=wRBxDwAAQBAJ&pg=PT144&lpg=PT144&dq=morozevich+gelfand+2003&source=bl&ots=9CUoePgXG_&sig=ACfU3U23YyZj3AdD8R0gUTJx7NUpLQRQ5w&hl=es&sa=X&ved=2ahUKEwiuv6umuajiAhXxAmMBHSnPBXUQ6AEwCHoECAcQAQ#v=onepage&q=morozevich%20gelfand%202003&f=false
ResponElimina