16. BOOK REVIEWS - LESZEK GASINSKI AND NIKOLAOS S. PAPAGEORGIOU, NONLINEAR ANALYSIS, SERIES IN MATHEMATICAL ANALYSIS AND APPLICATIONS, VOL. 9, CHAPMAN & HALL/CRC, TAYLOR & FRANCIS GROUP, BOCA RATON, LONDON, NEW YORK, SINGAPORE, 2006, XI +971 PP., ISBN 1-58488.