Soil science: past, present and future : proceedings of the joint meeting of the Czech Society of Soil Science and Soil Science Society of America and international conference of the Czech Society of Soil Science : Prague, Czech Republic, September 16-20, 2001 / edited by Luboš Borůvka.    In Prague : Czech University of Agriculture, 2002 . 384 s. il. ; . ISBN 80-213-0886-9