Centro Vasco de Arquitectura
Euskal Herriko Arkitektura Ikerkundea
https://www.wikidata.org/wiki/Q983994
https://russiapedia.rt.com/prominent-russians/business/savva-mamontov/
https://www.revolvy.com/page/Savva-Mamontov
http://es.nextews.com/39271902/
https://en.wikipedia.org/wiki/Savva_Mamontov
https://commons.wikimedia.org/wiki/File:Savva_Mamontov_in_winter_coat.png
https://arthive.com/valentinserov/works/401422~Portrait_Of_Savva_Mamontov
https://commons.wikimedia.org/wiki/File:Savva_Mamontov_by_I.Repin_(Bakhrushin_museum).jpeg
https://arthive.com/valentinserov/works/401417~Portrait_Of_Savva_Mamontov
http://www.vsluh.ru/news/society/299122
https://muzei-mira.com/kartini_russkih_hudojnikov/1786-portret-mamontova-vrubel-1897.html
https://www.wikiart.org/en/ilya-repin/portrait-of-savva-mamontov-1880
http://intranet.pogmacva.com/es/autor/editarImagenes/id/26058