M. J. Valtonen Et Al. , "A massive binary black-hole system in OJ 287 and a test of general relativity," NATURE , vol.452, no.7189, pp.851-853, 2008
Valtonen, M. J. Et Al. 2008. A massive binary black-hole system in OJ 287 and a test of general relativity. NATURE , vol.452, no.7189 , 851-853.
Valtonen, M. J., Lehto, H. J., Nilsson, K., Heidt, J., Takalo, L. O., Sillanpaa, A., ... Villforth, C.(2008). A massive binary black-hole system in OJ 287 and a test of general relativity. NATURE , vol.452, no.7189, 851-853.
Valtonen, M. Et Al. "A massive binary black-hole system in OJ 287 and a test of general relativity," NATURE , vol.452, no.7189, 851-853, 2008
Valtonen, M. J. Et Al. "A massive binary black-hole system in OJ 287 and a test of general relativity." NATURE , vol.452, no.7189, pp.851-853, 2008
Valtonen, M. J. Et Al. (2008) . "A massive binary black-hole system in OJ 287 and a test of general relativity." NATURE , vol.452, no.7189, pp.851-853.
@article{article, author={M. J. Valtonen Et Al. }, title={A massive binary black-hole system in OJ 287 and a test of general relativity}, journal={NATURE}, year=2008, pages={851-853} }