1. J. Bourgain and V. Milman, Dichotomie du cotype pour les espaces invariants, C.R.Acad. Sc. Paris, t.300, Serie I, no. 9, 1985.
2. J. Bourgain and L. Tzafriri, Invertibility of “large” submatrices with applications to the geometry of Banach spaces and harmonic analysis, Israel J. Math. 57 (1987), 137–224.
3. J. Bourgain and L. Tzafriri, Restricted invertibility of matrices and applications.
4. B. Carl and A. Pajor, Gelfand numbers of operators with values in a Hilbert space.
5. J. Elton, Sign-embeddings of l
1
n
, Trans. Amer. Math. Soc. 279 (1983), 113–124.