1. Basic Techniques of Combinatorial Theory;Cohen,1978
2. Enumeration of ordered trees;Dershowitz;Discr. Math.,1980
3. Chain enumeration and non-crossing partitions;Edelman;Discr. Math.,1980
4. J. Fürlinger, Some combinatorial interpretations of the Runyon numbers, to appear.
5. A noncommutative generalization and q-analog of the Lagrange inversion formula;Gessel;Trans. of the Amer. Math. Soc.,1980