@InProceedings{bogdan_mayer09,
  author = {Cristian Bogdan and Rudolf Mayer},
  title = {Makumba: the Role of Technology for the Sustainability of Amateur Programming Practice and Community},
  booktitle = {Proceedings of the 4th Communities and Technologies Conference (C\&T 2009)},
  year = {2009},
  month = {June 25--27},
  address = {Penn State University, PA, USA},
  publisher = {ACM},
}