Successful use of Gear's method for solving a problem posed by chandler et al.

Chandler, 1972, A program for efficient integration of rate equations and least-squares fitting of chemical reaction data, Comput. Biomed. Res., 5, 515, 10.1016/0010-4809(72)90058-4 Treanor, 1966, Method for numerical integration of coupled first order differential equations with greatly different time constants, Math. Comput., 20, 39, 10.1090/S0025-5718-1966-0192664-3 Gear, 1971, The automatic integration of ordinary differential equations, Commun. Assoc. Comput. Mach., 14, 176 Gear, 1971, Algorithum 407 Difsub for solution of ordinary differential equations D2, Commun. Assoc. Comput. Mach., 14, 185 Wilkinson, 1965