Blatt, Hans-Peter: Divergence of Rational Approximants to Non-Analytic Functions. In: Bakry, D. ; Beznea, L. ; Boboc, N. ; Rockner, M. (Hrsg.): Potential Theory and Stochastics in Albac : Aurel Cornea Memorial Volume ; conference proceedings, Albac, September 4-8, 2007. -
Bucharest : Theta, 2009. - (Theta series in advanced mathematics ; 11)
ISBN 973-87899-5-8
Albrecht, Ernst ; Ricker, Werner J.: Local spectral theory for operators with thin spectrum. In: Gheondea, Aurelian ; Şabac, Mihai: Spectral Analysis and Its Applications : Ion Colojoară Anniversary. -
Bucharest : Theta, 2003. - S. 1-25. - (Theta series in advanced mathematics ; 2)
ISBN 973-85432-3-1
(Begutachteter Beitrag / peer-reviewed paper)