[1] Hawkings J. A. and Gell-Mann M., The Evolution of Human Languages Addison-Wesley, Reading, Mass.) 1992. | UIUC | |
[2] Abrams D. M. and Strogatz S. H., Nature, 424 2003) 900. | UIUC | |
[3] Seminario de sociolingustica, Usos lingusticos en Galicia Real Academia Galega, Santiago) 1995. | ||
[4] Euromosaic: The Production and Reproduction of the Minority Language Groups in the European Union European Commission) 1997, ISBN 92-827-5512-6. | ||
[5] Nowak M. A., Komarova N. L. and Niyogi P., Nature, 417 2002) 611. | UIUC |