Free Download Dynamical systems and population persistence… By Hal L. Smith, Horst R. Thieme Publisher American Mathematical Society 2011 ISBN 082184945X,978-0-8218-4945-3..

Free Download Monotone Dynamical Systems: An Introduction to the… By Hal L. Smith Publisher American Mathematical Society 1995 ISBN 0821844873,978-0-8218-4487-8,0-8218-0393-X,66-1978-470-4,11-1991-443-4,53-1984-362-3,31-1990-263-2,32-1989-169-1..