Long-term study of Mkn 421 with the HAGAR Array of Telescopes
A. Sinha, A. Shukla, L. Saha, B. S. Acharya, G. C. Anupama, P. Bhattacharjee, R. J. Britto, V. R. Chitnis, T. P. Prabhu, B. B. Singh and P. R. Vishwanath
A&A, 591 (2016) A83
DOI: https://doi.org/10.1051/0004-6361/201628152
