Sharp embeddings of Besov spaces involving only logarithmic smoothness. - António M. Caetano; Amiran Gogatishvili; Bohumír Opic (J. Approx. Theory, 2008)

Embeddings and the growth envelope of Besov spaces involving only slowly varying smoothness. - António M. Caetano; Amiran Gogatishvili; Bohumír Opic (J. Approx. Theory, 2011)

Erratum to "Embeddings and the growth envelope of Besov spaces involving only slowly varying smoothness" [J. Approx. Theory 163 (2011) 1373-1399]. - António M. Caetano; Amiran Gogatishvili; Bohumír Opic (J. Approx. Theory, 2012)

Some s-numbers of an integral operator of Hardy type in Banach function spaces. - David E. Edmunds; Amiran Gogatishvili; Tengiz Kopaliani; Nino Samashvili (J. Approx. Theory, 2016)