Anne Sjerp Troelstra
3 references under this name, matched as it is written. Somebody else may write under it too, and the same person may appear here spelled another way.
Basic Proof Theory
Anne Sjerp Troelstra et al. (2000)
Constructivism in Mathematics, Vol 1
Anne Sjerp Troelstra et al. (1988)
Constructivism in Mathematics, Vol 2
Anne Sjerp Troelstra et al. (1988)