Chemical lumping of mechanisms generated by computer. Application to the modelling of normal butane oxidationR Bounaceur, V Warth, PA Glaude, F Battin-Leclerc, G Scacchi, GM Côme, T Faravelli and E RanziJ. Chim. Phys., 93 (1996) 1472-1491DOI: https://doi.org/10.1051/jcp/1996931472