Quotients of rigid graphs. - M. E. Adams; Jaroslav Nesetril; Jirí Sichler (J. Comb. Theory B, 1981)

On Full and Faithful Kan Extensions. - Václav Koubek; Jirí Sichler (Appl. Categorical Struct., 1998)

Endomorphism monoids of chained graphs. - Václav Koubek; Jirí Sichler (Discret. Math., 2002)

On relative universality and Q-universality. - Václav Koubek; Jirí Sichler (Stud Logica, 2004)

Configurations in Coproducts of Priestley Spaces. - Richard N. Ball; Ales Pultr; Jirí Sichler (Appl. Categorical Struct., 2005)

More on Configurations in Priestley Spaces, and Some New Problems. - Richard N. Ball; Ales Pultr; Jirí Sichler (Appl. Categorical Struct., 2007)

A Priestley Sum of Finite Trees is Acyclic. - Richard N. Ball; Ales Pultr; Jirí Sichler (Appl. Categorical Struct., 2008)

Almost ff-universality Implies Q-universality. - Václav Koubek; Jirí Sichler (Appl. Categorical Struct., 2009)

Universality of Categories of Coalgebras. - Václav Koubek; Jirí Sichler; Vera Trnková (Appl. Categorical Struct., 2011)