Improved estimates for the approximation numbers of Hardy-type operators. - Jan Lang (J. Approx. Theory, 2003)

Estimates for n-widths of the Hardy-type operators (Addendum to "Improved estimates for the approximation numbers of the Hardy-type operators"). - Jan Lang (J. Approx. Theory, 2006)

Properties of generalized trigonometric functions. - David E. Edmunds; Petr Gurka; Jan Lang (J. Approx. Theory, 2012)

Gelfand numbers and widths. - David E. Edmunds; Jan Lang (J. Approx. Theory, 2013)

Non-nuclearity of a Sobolev embedding on an interval. - David E. Edmunds; Jan Lang (J. Approx. Theory, 2014)

Nuclearity and non-nuclearity of some Sobolev embeddings on domains. - David E. Edmunds; Petr Gurka; Jan Lang (J. Approx. Theory, 2016)

Measure of noncompactness of Sobolev embeddings on strip-like domains. - David E. Edmunds; Jan Lang; Zdenek Mihula (J. Approx. Theory, 2021)

Ontology-driven detection of redundancy in short texts and its visualization. - Miroslav Borecky; Jan Lang (CompSysTech, 2022)

Non-compact embeddings of Sobolev spaces. - David E. Edmunds; Jan Lang (J. Approx. Theory, 2023)

Systematic Literature Review of Automation and Artificial Intelligence in Usability Issue Detection. - Eduard Kuric; Peter Demcak; Matus Krajcovic; Jan Lang (CoRR, 2025)