The SemSearchXplorer - Exploring Semantic Search Results with Semantic Visualizations. - Thomas Daniel Ullmann; Victoria S. Uren; Andriy Nikolov (GI Jahrestagung, 2009)

Engineering User Centered Interaction Systems for Semantic Visualizations. - Kawa Nazemi; Thomas Daniel Ullmann; Christoph Hornung (HCI (5), 2009)

Activating Thinking Skills with Mash-Up Research Environments: A Proposal. - Thomas Daniel Ullmann (EC-TEL Doctoral Consortium, 2010)

Components of a Research 2.0 Infrastructure. - Thomas Daniel Ullmann; Fridolin Wild; Peter Scott; Erik Duval; Bram Vandeputte; Gonzalo Parra; Wolfgang Reinhardt 001; Nina Heinze; Peter Kraker; Angela Fessl (EC-TEL, 2010)

The STELLAR Science 2.0 Mash-Up Infrastructure. - Fridolin Wild; Thomas Daniel Ullmann; Peter Scott (ICALT, 2010)

Comparing Automatically Detected Reflective Texts with Human Judgements. - Thomas Daniel Ullmann; Fridolin Wild; Peter Scott (ARTEL@EC-TEL, 2012)

Interdisciplinary Cohesion of TEL - An Account of Multiple Perspectives. - Philip Meyer; Sebastian Kelle; Thomas Daniel Ullmann; Peter Scott; Fridolin Wild (EC-TEL, 2013)

Reflection - quantifying a rare good. - Thomas Daniel Ullmann; Fridolin Wild; Peter Scott (ARTEL@EC-TEL, 2013)

Awareness and reflection in technology enhanced learning. - Milos Kravcik; Alexander Mikroyannidis; Viktoria Pammer; Michael Prilla; Thomas Daniel Ullmann; Fridolin Wild (ARTEL@EC-TEL, 2014)

Keywords of written reflection - a comparison between reflective and descriptive datasets. - Thomas Daniel Ullmann (ARTEL@EC-TEL, 2015)

Reflective writing analytics: empirically determined keywords of written reflection. - Thomas Daniel Ullmann (LAK, 2017)

Understanding Accessibility as a Process through the Analysis of Feedback from Disabled Students. - Tim Coughlan; Thomas Daniel Ullmann; Kate Lister (W4A, 2017)

A Reflective Writing Framework for Computing Education. - Huda Alrashidi; Mike Joy; Thomas Daniel Ullmann (ITiCSE, 2019)

Automated Analysis of Reflection in Writing: Validating Machine Learning Approaches. - Thomas Daniel Ullmann (Int. J. Artif. Intell. Educ., 2019)

An empirical evaluation of a Reflective Writing Framework (RWF) for Reflective Writing in Computer Science Education. - Huda Alrashidi; Thomas Daniel Ullmann; Mike Joy (FIE, 2020)

Educators' Validation on a Reflective Writing Framework (RWF) for Assessing Reflective Writing in Computer Science Education. - Huda Alrashidi; Mike Joy; Thomas Daniel Ullmann; Nouf Almujally (ITS, 2020)

Validating the Reflective Writing Framework (RWF) for Assessing Reflective Writing in Computer Science Education Through Manual Annotation. - Huda Alrashidi; Mike Joy; Thomas Daniel Ullmann; Nouf Almujally (ITS, 2020)

How to Assess Reflective Writing in Computer Science Education? A Critical Analysis. - Huda Alrashidi; Nouf Almujally; Methaq Kadhum; Ebtehal Quqandi; Thomas Daniel Ullmann; Mike Joy (MIPRO, 2022)