Height correction in the measurement of solar differential rotation determined by coronal bright pointsR. Brajša, H. Wöhl, B. Vršnak, V. Ruždjak, F. Clette, J.-F. Hochedez and D. RošaA&A, 414 2 (2004) 707-715DOI: https://doi.org/10.1051/0004-6361:20034082