Narlikar, Jayant V..
Phenomena in the Universe / - 1st ed / - Oxford OX2 6DP : Oxford University Press. - p.218 :
0-19-289146-4
Universe
B9:6 / M2;3
Phenomena in the Universe / - 1st ed / - Oxford OX2 6DP : Oxford University Press. - p.218 :
0-19-289146-4
Universe
B9:6 / M2;3