| A new class of symmetric block design | 1969/03/01 | English | |
| An addition theorem modulo p | 1968/07/01 | English | |
| The square root of a digraph | 1968/11/01 | English | |
| Maximal subsemigroups of finite semigroups | 1968/04/01 | English | |
| Orthogonal sets of vectors over Zm | 1970/09/01 | English | |
| Enumeration of polyhedra: The number of 9-hedra | 1969/09/01 | English | |
| Signed distance graphs | 1969/09/01 | English | |
| Enumeration under group action: Unsolved graphical enumeration problems, IV | 1970/01/01 | English | |
| Strongly geodetic graphs | 1968/09/01 | English | |
| A note of a class of Hadamard matrices | 1969/03/01 | English | |
| A note on a result of knuth or identities grow on trees | 1969/12/01 | English | |
| On the existence of regular n-graphs with given girth | 1970/09/01 | English | |
| Some combinatorial properties of transformations and their connections with the theory of graphs | 1970/09/01 | English | |
| A criterion for planarity of the square of a graph | 1967/06/01 | English | |
| Some graph theoretic results associated with Ramsey's theorem | 1968/03/01 | English | |
| Cardinality of finite topologies | 1968/07/01 | English | |
| A generalization of a combinatorial theorem of macaulay | 1969/11/01 | English | |
| An exponential formula for solving Boltzmann's equation for a Maxwellian gas | 1967/05/01 | English | |
| The genus of the complete tripartite graph Kmn,n,n | 1969/11/01 | English | |
| The number of idempotent elements in symmetric semigroups | 1967/09/01 | English | |
| On a conjecture of milner on k-graphs with non-disjoint edges | 1968/09/01 | English | |
| Some remarks on the van der Waerden conjecture | 1968/12/01 | English | |
| The number of s-dimensional faces in a complex: An analogy between the simplex and the cube | 1969/01/01 | English | |
| A birthday holiday problem | 1968/12/01 | English | |
| On constructing balanced incomplete block designs from association matrices with special reference to association schemes of two and three classes | 1969/07/01 | English | |
| On the non-existence of graphs with transitive generalized dicyclic groups | 1968/01/01 | English | |
| A maximum principle for graphs | 1967/07/01 | English | |
| A characterization of cubic lattice graphs | 1967/12/01 | English | |
| Hereditary and recurrent properties in lattices | 1970/09/01 | English | |
| Notes on plane partitions. I | 1968/01/01 | English | |