- Hajnal, János
Hajnal, János (1913-2010) (Nombre personal)
- Hajnal, Giovanni (1913-2010)
Giovanni Hajnal, 2013 : p. 9 (János (Giovanni) Hajnal) p. 13 (János (Giovanni); b. Aug. 26, 1913, Budapest) p. 10 (d. Oct. 9, 2010)
Allgemeines Künstlerlexikon. Bio-bibliographischer Index A-Z, 2007-2009 (Hajnal, János; b. Budapest, Aug. 26, 1913; fresco painter, designer, graphic artist)
Wikipedia, Sept. 25, 2014; (János Hajnal; Janos "Giovanni" Hajnal; b. Budapest, Aug. 27, 1913; d. Rome, Oct. 9, 2010; Hungarian naturalized Italian artist and illustrator; considered one of the major contemporary creators of glass windows and mosaics)
Artnet, Sept. 25, 2014 (Janos Hajnal (Hungarian, 1913-2010)
ULAN, Sept. 25, 2014; (Hajnal, Giovanni (Italian glass artist born 1930))