raccourcis web
https://www.erudit.org/en/journals/cdd/2003-n57-cdd5007928/1008103ar.pdf
http://www.meibohmfinearts.com/availablePrints.aspx?cat=109
http://data.bnf.fr/14969272/gaston_hoffmann/
https://collections.nlm.nih.gov/catalog/nlm:nlmuid-101393226-img
http://www.proantic.com/magazine/charles-schneider-verre-francais/
https://www.chapitre.com/BOOK/hoffmann-gaston/tout-le-dessin-en-quarante-lecons,35416422.aspx
SCHNEIDER (1881 - 1953) et Gaston HOFFMANN
- https://leverreetlecristal.wordpress.com/2014/01/24/charles-schneider-1881-1953-un-maitre-verrier-apprecie-outre-atlantique/
- https://leverreetlecristal.wordpress.com/2017/10/10/vase-en-verre-double-de-charles-schneider-et-gaston-hoffmann-realise-en-1918-estime-25-000-e-france/
- http://www.millon-associes.com/html/fiche.jsp?id=7082036&np=6&lng=fr&npp=20&ordre=&aff=1&r=
- http://catalogue.gazette-drouot.com/ref/lot-ventes-aux-encheres.jsp?id=1118427
Musée national des beaux-arts du Québec
- https://www.mnbaq.org/collections/oeuvre/la-faim-600014578
- https://www.mnbaq.org/collections/oeuvre/la-soif-600014579
- https://www.mnbaq.org/collections/oeuvre/scene-d-hiver-600004982
- https://www.mnbaq.org/collections/oeuvre/seigneur-afghan-600014577
NOYON