An early study by Gernikazarra Historia Taldea estimated the number of victims to be 126, later revised to 153, and is still considered by the organisation to be provisional. Those incomplete data roughly correspond to the mortuary records of the town that survived, and do not include the 592 deaths registered in Bilbao's hospital. Raúl Arias Ramos in his book "La Legión Cóndor en la Guerra Civil" states that there were 250 dead. The study by Joan Villarroya and J.M. Sole i Sabate in their book "España en Llamas. La Guerra Civil desde el Aire" states that there were 300 dead. These studies, cited by historians such as Stanley Payne and Antony Beevor as well as media such as the BBC and "El Mundo", provide the currently recognized death toll in those numbers.