G. Steele, и R. Gabriel. The Second ACM SIGPLAN Conference on History of
Programming Languages April 20 -- 23, 1993, Cambridge,
United States, стр. 231--270. New~York, ACM, Association for Computing Machinery, (1993)
G. Sussman, G. Steele, и R. Gabriel. The Second ACM SIGPLAN Conference on History of
Programming Languages April 20 -- 23, 1993, Cambridge,
United States, стр. 361--362. New~York, ACM, Association for Computing Machinery, (1993)