Direct Reflections. - Guillaume C. L. Brümmer; Eraldo Giuli; David B. Holgate (Appl. Categorical Struct., 2000)

Bicompletion and Samuel Bicompactification. - Guillaume C. L. Brümmer; Hans-Peter A. Künzi (Appl. Categorical Struct., 2002)

Idempotency of Extensions via the Bicompletion. - Guillaume C. L. Brümmer; Hans-Peter A. Künzi (Appl. Categorical Struct., 2007)