Construction of Steiner quadruple systems having a prescribed number of blocks in common M Gionfriddo, CC Lindler Discrete Mathematics 34 (1), 31-42, 1981 | 50 | 1981 |

Balanced and strongly balanced Pk-designs L Berardi, M Gionfriddo, R Rota Discrete Mathematics 312 (3), 633-636, 2012 | 45 | 2012 |

Balanced and strongly balanced 4-kite designs M Gionfriddo, S Kucukcifci, L Milazzo Util. Math 91, 121-129, 2013 | 36 | 2013 |

Perfect octagon quadrangle systems L Berardi, M Gionfriddo, R Rota Discrete Mathematics 310 (13-14), 1979-1985, 2010 | 34 | 2010 |

Perfect dodecagon quadrangle systems L Gionfriddo, M Gionfriddo Discrete Mathematics 310 (22), 3067-3071, 2010 | 32 | 2010 |

Embedding balanced P3-designs into (balanced) P4-designs M Gionfriddo, G Quattrocchi Discrete Mathematics 308 (2-3), 155-160, 2008 | 32 | 2008 |

Hypergraphs and Designs M Gionfriddo, L Milazzo, VI Voloshin Nova Publishers, 2015 | 31 | 2015 |

Perfect octagon quadrangle systems—II L Berardi, M Gionfriddo, R Rota Discrete Mathematics 312 (3), 614-620, 2012 | 29 | 2012 |

2-regular equicolourings for P4-designs A Amato, M Gionfriddo, L Milazzo Discrete Mathematics 312 (15), 2252-2261, 2012 | 28 | 2012 |

Perfect octagon quadrangle systems with upper C4-systems L Berardi, M Gionfriddo, R Rota Journal of Statistical Planning and Inference 141 (7), 2249-2255, 2011 | 27 | 2011 |

Equitable specialized block-colourings for 4-cycle systems—I L Gionfriddo, M Gionfriddo, G Ragusa Discrete mathematics 310 (22), 3126-3131, 2010 | 27 | 2010 |

Bicolouring Steiner systems S (2, 4, v) M Gionfriddo, L Milazzo, A Rosa, V Voloshin Discrete mathematics 283 (1-3), 249-253, 2004 | 27 | 2004 |

Colouring 4-cycle systems with equitably coloured blocks M Gionfriddo, G Quattrocchi Discrete mathematics 284 (1-3), 137-148, 2004 | 26 | 2004 |

Equitable specialized block-colourings for 4-cycle systems—II M Gionfriddo, G Ragusa Discrete mathematics 310 (13-14), 1986-1994, 2010 | 25 | 2010 |

The intersection problem for K4-e designs EJ Billington, M Gionfriddo, CC Lindner Journal of statistical planning and inference 58 (1), 5-27, 1997 | 24 | 1997 |

On the existence of uniformly resolvable decompositions of Kv and Kv− I into paths and kites M Gionfriddo, S Milici Discrete Mathematics 313 (23), 2830-2834, 2013 | 23 | 2013 |

Extending bicolorings for Steiner triple systems M Gionfriddo, E Guardo, L Milazzo Applicable Analysis and Discrete Mathematics, 225-234, 2013 | 23 | 2013 |

2-colouring K4-e designs. M Gionfriddo, CC Lindner, CA Rodger Australas. J Comb. 3, 211-230, 1991 | 23 | 1991 |

2-colourings in S (t, t+ 1, v) M Gionfriddo, GL Faro Discrete mathematics 111 (1-3), 263-268, 1993 | 21 | 1993 |

On conjectures of Berge and Chvátal M Gionfriddo, Z Tuza Discrete Mathematics 124 (1-3), 79-86, 1994 | 20 | 1994 |