Sleep stages classification using vital signals recordings. - Agnes Klein; Oana Ramona Velicu; Natividad Martínez Madrid; Ralf Seepold (WISES, 2015)

Experimental sleep phases monitoring. - Oana Ramona Velicu; Natividad Martínez Madrid; Ralf Seepold (BHI, 2016)

Personal Recommendation System for Improving Sleep Quality. - Patrick Datko; Wilhelm Daniel Scherz; Oana Ramona Velicu; Ralf Seepold; Natividad Martínez Madrid (KES-IDT (1), 2016)

Heart rate spectrum analysis for sleep quality detection. - Wilhelm Daniel Scherz; Daniel Fritz; Oana Ramona Velicu; Ralf Seepold; Natividad Martínez Madrid (EURASIP J. Embed. Syst., 2017)