1. New method of culture of Zona-inciuded or Zona-free embryos: the well of the well (WOW) system Vajta G, Peura TT, Holm P, Paldi A, Greve T, Trounson AO, Callesen H. |

2. Molecular Reproduction and Development. 2000;55:256-264 The Well-of-the-Well system: an efficient approach to improve embryo development Vajta G, Korosi Tm Du Y, Nakata K, leda S, Kuwayama M, Nagy ZP. | Reprod Biomed Online. 2008; 17(1):73-81

3. Vitrification in assisted reproduction;myths,mistakes, disbeliefs and confusion. Vajta G, Nagy ZP, Cobo A, Conceicao J, Yovich J. I Reprod Biomed Online.2009;19 Suppl 3:1-7.