1. Sorting permutations with networks of stacks;Atkinson,1992
2. M.D. Atkinson and D. Tulley, The combinatorics of abstract data types, Proc. IMA Conf. on Applications of Combinatorics, to appear.
3. An end-to-end approach to the resequencing problem;Baccelli;J. ACM,1984
4. The algebraic theory of context-free languages;Chomsky,1963
5. The average height of planted plane trees;de Bruijn,1972