@incollection{StephanyVoeikova2013,
  author    = {Ursula Stephany and Maria Voeikova},
  title     = {On the early development of aspect in greek and russian child language, a comparative analysis},
  booktitle = {Acquisition of aspect / Ed. by Dagmar Bittner \& Natalia Gagarina, , Zentrum f{\"u}r Allgemeine Sprachwissenschaft, Sprachtypologie und Universalienforschung, Berlin, 2003; ZAS papers in linguistics Vol. 29},
  volume    = {29},
  url       = {http://www.zas.gwz-berlin.de/fileadmin/material/ZASPiL_Volltexte/zp29/zaspil29-stephany-voeikova.pdf},
  year      = {2013},
}