Low-Cost Optical Indoor Localization System for Mobile Objects without Image Processing. - Ralf Salomon; Matthias Schneider 004; Daniel Wehden (ETFA, 2006)

Localization by superposing beats: First laboratory experiments and theoretical analyzes. - Matthias Schneider 004; Ralf Salomon (ETFA, 2008)

Superposing Beats: A Novel Method for High-Precision Indoor Localization. - Matthias Schneider 004; Ralf Salomon (UKSim, 2008)

Theoretical analysis and validated experiments of the localization by superposing beats. - Matthias Schneider 004; Ralf Salomon (IPIN, 2010)