1. Aanderra, S.O., On k-tape versus (k-1)-tape real time computation. SIAM-AMS Colloquium on Applied Mathematics 7: Complexity of Computation (R. Karp, ed.), 75–96 (1974).
2. Time and tape complexity of pushdown automaton languages;Aho;Info. and Control,1968
3. “The Theory of Parsing, Translation and Compiling, Vol. I, II.”;Aho,1972
4. Translational lemmas, polynomial time, and log n) j-space;Book;Theoret. Comp. Sci.,1976
5. Tape-bounded Turing acceptors and principal AFLs;Book;J. Comput. Syst. Sci.,1970