1. Supergravity in theory in 11 dimensions
2. L. Castellani, R. D'Auria and P. Fré, in Supersymmetry and supergravity '83, Proc. 19th Winter School of Theoretical phys., Karpacz, ed. B. Milewski (World Scientific)
3. Superunification from eleven dimensions
4. P. van Nieuwenhuizen, Les Houches lecture notes, to appear