CIRCUITS THROUGH SPECIFIED EDGESHAGGKVIST R; THOMASSEN C.1982; DISCRETE MATH.; ISSN 0012-365X; NLD; DA. 1982; VOL. 41; NO 1; PP. 29-34; BIBL. 14 REF.Article

ON DIAMETER CRITICAL GRAPHSCACCETTA L; HAGGKVIST R.1979; DISCRETE MATH.; NLD; DA. 1979; VOL. 28; NO 3; PP. 223-229; BIBL. 2 REF.Article

A REMARK ON HAMILTONIAN CYCLESHAGGKVIST R; NICOGHOSSIAN GG.1981; J. COMB. THEORY, SER. B; ISSN 0095-8956; USA; DA. 1981; VOL. 30; NO 1; PP. 118-120; BIBL. 2 REF.Article

Rigorous solution of a two-dimensional Blume-Energy-Griffiths modelROSENGREN, A; HAGGKVIST, R.Physical review letters. 1989, Vol 63, Num 6, pp 660-663, issn 0031-9007, 4 p.Article

The square of a Hamiltonian cycleGENGHUA FAN; HäGGKVIST, R.SIAM journal on discrete mathematics (Print). 1994, Vol 7, Num 2, pp 203-212, issn 0895-4801Article

Powers of Hamilton cycles in tournamentsBOLLOBAS, B; HÄGGKVIST, R.Journal of combinatorial theory. Series B. 1990, Vol 50, Num 2, pp 309-318, issn 0095-8956Article

Trees in tournamentsHÄGGKVIST, R; THOMASON, A.Combinatorica (Print). 1991, Vol 11, Num 2, pp 123-130, issn 0209-9683Article

Disecting a square into rectangles of equal areaHAGGKVIST, R; LINDBERG, P.-O; LINDSTROM, B et al.Discrete mathematics. 1983, Vol 47, Num 2-3, pp 321-323, issn 0012-365XArticle

On multiplicative graphs and the product conjectureHAGGKVIST, R; HELL, P; MILLER, D. J et al.Combinatorica (Print). 1988, Vol 8, Num 1, pp 63-74, issn 0209-9683Article