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2. H. Bass, Lectures on Topics in Algebraic K-Theory, Bombay (1967).
3. J. Milnor, Notes on Algebraic K-Theory, Preprint, pp. 1–82 (1968).
4. L. N. Vasershtein, "On stabilization in algebraic K-theory," Funktsional. Analiz i Ego Prilozhen.,3, 85–86 (1969).
5. L. N. Vasershtein, "Stabilization of unitary and orthogonal groups over a ring with involution," Matem. Sborn.,81, No. 3, 328–351 (1970).