Nicholas Bamber

On Interstices of Countable Arithmetically Saturated Models of Peano Arithmetic

Henryk Kotlarski, Nicholas Bamber, H. Kotlarski, 1997, Math. Log. Q..

On two questions concerning the automorphism groups of countable recursively saturated models of PA

Roman Kossak, Nicholas Bamber, 1996, Arch. Math. Log..