Penrose, R.
Roger Penrose collected works - 1968-1975. Vol. 2. - Oxford Oxford University Press 2011 - xxii, 935p.
978-0-19-921937-7
Roger Penrose collected works - 1968-1975. Vol. 2. - Oxford Oxford University Press 2011 - xxii, 935p.
978-0-19-921937-7