Volume 100, Numbers 1-3, May 1992
: Problems worthy of attack prove their worth by hitting back.
: Correspondence between Sylvester, Petersen, Hilbert and Klein on invariants and the factorisation of graphs 1889-1891.
: We shall have to evolve problem solvers galore Since each problem we solve creates ten problems more.
H. L. Abbott
, Bing Zhou
: On a conjecture of Gallai concerning complete subgraphs of k-critical graphs.
: The end structure of a graph: recent results and open problems.