Gupta, A. C.; et al, A complete photometric study of the open cluster NGC 7790 containing Cepheid variables, Astronomy and Astrophysics Supplement, September 2000, 145 (3): 365–375, Bibcode:2000A&AS..145..365G, doi:10.1051/aas:2000247.
Gupta, A. C.; et al, A complete photometric study of the open cluster NGC 7790 containing Cepheid variables, Astronomy and Astrophysics Supplement, September 2000, 145 (3): 365–375, Bibcode:2000A&AS..145..365G, doi:10.1051/aas:2000247.