@inproceedings{b841a7be31e944ae8830d628232fb809,
title = "Nonlinear algorithms in isogram extraction from topographic maps",
author = "V. Lukin and N. Ponomarenko and A. Kurekin and A. Zelensky and J. Astola and P. Koivisto and K. Saarinen",
note = "poistettu tuplat r=13 ja r=599<br/>Contribution: organisation=sgn,FACT1=1",
year = "1998",
language = "English",
pages = "47--58",
editor = "E.R. Dougherty and J. Astola",
booktitle = "Proceedings of SPIE, Nonlinear Image Processing IX, 26-27 January, 1998, San Jose, California, USA",
}