ISBN 9780306392535 books & textbook
Differential Equations with Small Parameters and Relaxation Oscillations (Mathematical Concepts and Methods in Science and Engineering)
Mishchenko, E. F.; Rozov, B. K.; Goodspeed, F. M. (translator)
Perseus Publishing /1980T Hardcover / 228 Pages
isbn-10: 0306392534 / isbn-13: 9780306392535