1. Agrawal P. C. 2006, AdSpR, 38, 2989.
2. Agrawal P. C., Yadav J. S., Antia H. M. et al., 2017, J. Astrophys. Astr., 38, 30
3. Antia H. M., Yadav J. S., Agrawal P. C. et al. 2017, ApJS, 231, 10
4. Antia H. M., Katoch T., Shah P., Dedhia D., Gupta S., Gaikwad R., Sharma V., Vibhute A., Bhattacharya D. 2020a, GCN 27313
5. Antia H. M., Katoch T., Shah P., Dedhia 2020b, GCN, 27313