[1]
Kłopotek, M., Wierzchoń, S., Ciesielski, K., Dramiński, M., Czerski, D. and Kujawiak, M. 2006. Map Quality Measurements for GNG and SOM based Document Collection Maps. Studia Informatica. System and information technology. 7, 1-2 (Dec. 2006), 65–76.