Periodic solutions for a neutral nonlinear dynamical equation on a time scale ER Kaufmann, YN Raffoul Journal of Mathematical Analysis and Applications 319 (1), 315-325, 2006 | 234 | 2006 |

Positive solutions of a boundary value problem for a nonlinear fractional differential equation E Kaufmann, E Mboumi Electronic Journal of Qualitative Theory of Differential Equations 2008 (3 …, 2008 | 219 | 2008 |

Positive solutions of a three-point boundary-value problem on a time scale. ER Kaufmann Electronic Journal of Differential Equations (EJDE)[electronic only] 2003 …, 2003 | 104 | 2003 |

Periodicity and stability in neutral nonlinear dynamic equations with functional delay on a time scale. ER Kaufmann, YN Raffoul Electronic Journal of Differential Equations (EJDE)[electronic only] 2007 …, 2007 | 61 | 2007 |

A multiplicity result for a boundary value problem with infinitely many singularities ER Kaufmann, N Kosmatov Journal of Mathematical Analysis and Applications 269 (2), 444-453, 2002 | 49 | 2002 |

A nonlinear neutral periodic differential equation. ER Kaufmann Electronic Journal of Differential Equations (EJDE)[electronic only] 2010 …, 2010 | 45 | 2010 |

Multiple positive solutions for focal boundary value problem? J Henderson, ER Kaufmann Communications in Applied Analysis 1 (1), 53-60, 1997 | 45 | 1997 |

Multiple positive solutions for higher order boundary value problems ER Kaufmann The Rocky Mountain journal of mathematics, 1017-1028, 1998 | 37 | 1998 |

A second-order boundary value problem with impulsive effects on an unbounded domain ER Kaufmann, N Kosmatov, YN Raffoul Nonlinear Analysis: Theory, Methods & Applications 69 (9), 2924-2929, 2008 | 33 | 2008 |

Multiple solutions of a boundary value problem on an unbounded domain PW Eloe, ER Kaufmann, CC Tisdell Dynamic Systems and Applications 15 (1), 53, 2006 | 33 | 2006 |

Positive solutions for a nonlinear functional dynamic equation on a time scale ER Kaufmann, YN Raffoul Nonlinear Analysis: Theory, Methods & Applications 62 (7), 1267-1276, 2005 | 26 | 2005 |

Eigenvalue problems for a three-point boundary-value problem on a time scale E Kaufmann, Y Raffoul Electronic Journal of Qualitative Theory of Differential Equations 2004 (2 …, 2004 | 25 | 2004 |

Multiple positive solutions for difference equations PW Eloe, J Henderson, ER Kaufmann Journal of Difference Equations and Applications 3 (3-4), 219-229, 1997 | 23 | 1997 |

Existence and nonexistence of positive solutions for a nonlinear fractional boundary value problem ER Kaufmann Conference Publications 2009 (Special), 416, 2009 | 19 | 2009 |

A second-order singular boundary value problem ER Kaufmann, N Kosmatov Computers & Mathematics with Applications 47 (8-9), 1317-1326, 2004 | 18 | 2004 |

Comparison of eigenvalues for eigenvalue problems of a right disfocal operator ER Kaufmann Panamer. Math. J 4 (4), 103-124, 1994 | 18 | 1994 |

Stability in neutral nonlinear dynamic equations on a time scale with functional delay ER Kaufmann, YN Raffoul Dynamic Systems and Applications 16 (3), 561, 2007 | 16 | 2007 |

Impulsive dynamic equations on a time scale. ER Kaufmann, N Kosmatov, YN Raffoul Electronic Journal of Differential Equations (EJDE)[electronic only] 2008 …, 2008 | 12 | 2008 |

Elastic beam problem with higher order derivatives ER Kaufmann, N Kosmatov Nonlinear Analysis: Real World Applications 8 (3), 811-821, 2007 | 12 | 2007 |

Discretization scheme in Volterra integro-differential equations that preserves stability and boundedness ER Kaufmann, YN Raffoul Journal of Difference Equations and Applications 12 (7), 731-740, 2006 | 12 | 2006 |