Columbia subject headings:
Icons, Byzantine--Catalogs.
Icons--Catalogs.
Icons--Sweden--Stockholm--Catalogs.
Nationalmuseum (Sweden)--Catalogs.
Harvard subject headings:
Aschberg, Olof, 1877-1960--Art collections--Catalogs.
Icons, Russian--Catalogs.
Icons--Private collections--Sweden--Stockholm--Catalogs.
Nationalmuseum (Sweden)--Catalogs.
Princeton subject headings:
Aschberg, Olof, 1877-1960--Art collections--Catalogs.
Catalogs.
Icons, Russian--Catalogs.
Icons--Private collections--Sweden--Stockholm--Catalogs.
Nationalmuseum (Sweden)--Catalogs.