Graphs and homomorphisms P Hell, J Nesetril OUP Oxford, 2004 | 1354 | 2004 |

On the history of the minimum spanning tree problem RL Graham, P Hell Annals of the History of Computing 7 (1), 43-57, 1985 | 1219 | 1985 |

On the complexity of H-coloring P Hell, J Nešetřil Journal of Combinatorial Theory, Series B 48 (1), 92-110, 1990 | 1006 | 1990 |

The core of a graph P Hell, J Nešetřil Discrete Mathematics 109 (1-3), 117-126, 1992 | 312 | 1992 |

List homomorphisms and circular arc graphs T Feder, P Hell, J Huang Combinatorica 19 (4), 487-505, 1999 | 261 | 1999 |

A note on the star chromatic number JA Bondy, P Hell Journal of Graph Theory 14 (4), 479-482, 1990 | 251 | 1990 |

Linear-time representation algorithms for proper circular-arc graphs and proper interval graphs X Deng, P Hell, J Huang SIAM Journal on Computing 25 (2), 390-403, 1996 | 248 | 1996 |

Graph problems arising from wavelength-routing in all-optical networks B Beauquier, JC Bermond, L Gargano, P Hell, S Pérennes, U Vaccaro WOCS 1997-2nd Workshop on Optics and Computer Science-11th International …, 1997 | 245 | 1997 |

On the complexity of general graph factor problems DG Kirkpatrick, P Hell SIAM Journal on Computing 12 (3), 601-609, 1983 | 238 | 1983 |

On the completeness of a generalized matching problem DG Kirkpatrick, P Hell Proceedings of the tenth annual ACM symposium on Theory of computing, 240-245, 1978 | 214 | 1978 |

List homomorphisms to reflexive graphs T Feder, P Hell Journal of Combinatorial Theory, Series B 72 (2), 236-250, 1998 | 212 | 1998 |

List partitions T Feder, P Hell, S Klein, R Motwani SIAM Journal on Discrete Mathematics 16 (3), 449-478, 2003 | 179 | 2003 |

Bi‐arc graphs and the complexity of list homomorphisms T Feder, P Hell, J Huang Journal of Graph Theory 42 (1), 61-80, 2003 | 169 | 2003 |

Complexity of graph partition problems T Feder, P Hell, S Klein, R Motwani Proceedings of the thirty-first annual ACM symposium on Theory of computing …, 1999 | 149 | 1999 |

Interval bigraphs and circular arc graphs P Hell, J Huang Journal of Graph Theory 46 (4), 313-327, 2004 | 138 | 2004 |

Duality and polynomial testing of tree homomorphisms P Hell, J Nesetril, X Zhu Transactions of the American Mathematical Society 348 (4), 1281-1297, 1996 | 137 | 1996 |

On multiplicative graphs and the product conjecture R Häggkvist, P Hell, DJ Miller, V Neumann Lara Combinatorica 8, 63-74, 1988 | 122 | 1988 |

The complexity of colouring by semicomplete digraphs J Bang-Jensen, P Hell, G MacGillivray SIAM Journal on Discrete Mathematics 1 (3), 281-298, 1988 | 120 | 1988 |

Partitioning chordal graphs into independent sets and cliques P Hell, S Klein, LT Nogueira, F Protti Discrete Applied Mathematics 141 (1-3), 185-194, 2004 | 104 | 2004 |

Graph decompositions, handcuffed prisoners and balanced P-designs P Hell, A Rosa Discrete Mathematics 2 (3), 229-252, 1972 | 102 | 1972 |