1. Singularity theory II, classification and applications;Arnold,1993
2. On binary differential equations;Bruce;Nonlinearity,1995
3. Generic 1-parameter families of binary differential equations of Morse type;Bruce;Discrete Contin. Dyn. Syst.,1997
4. Bifurcations of implicit differential equations;Bruce;Proc. R. Soc. Edinb.,2000
5. Sulla reduzione a forma delle equationi lineari alle derviate parziale di secondo ordine di tipo misto;Cibrario;Accad. Sci. Lett., Inst. Lomb. Rend.,1932