Correlation-Based Doppler Shift Estimation for Opportunistic LEO-PNT With Starlink Signals. - Winfried Stock; Christian A. Hofmann; Andreas Knopp (WiSEE, 2024)

Error Source Analysis for Doppler Shift Based Opportunistic LEO-PNT With Starlink Signals. - Winfried Stock; Robert T. Schwarz; Andreas Knopp (PLANS, 2025)

Survey on Opportunistic PNT With Signals From LEO Communication Satellites. - Winfried Stock; Robert T. Schwarz; Christian A. Hofmann; Andreas Knopp (IEEE Commun. Surv. Tutorials, 2025)