The Lie algebra of endomorphisms of an infinite-dimensional vector space Ian Stewart — 1972 Compositio Mathematica
Conjugacy theorems for a class of locally finite Lie algebras Ian Stewart — 1975 Compositio Mathematica
Chevalley-Jordan decomposition for a class of locally finite Lie algebras Ian Stewart — 1976 Compositio Mathematica
Correction to "Finite Rings with a Specified Group of Units". Ian Stewart — 1972 Mathematische Zeitschrift
Adjoint groups and the Mal'cev correspondence (a tale of four functors) Ian Stewart — 1977 Fundamenta Mathematicae
Provozování matematiky bez povolení (fejeton) Ian Stewart — 1984 Pokroky matematiky, fyziky a astronomie
Speciation: A case study in symmetric bifurcation theory. Stewart, Ian — 2003 Zeszyty Naukowe Uniwersytetu Jagiellońskiego. Universitatis Iagellonicae Acta Mathematica