Kvas, A., Mayer-Gürr, T., Krauss, S., Brockmann, J. M., Schubert, T., Schuh, W.-D., Pail, R., Gruber, T., Jäggi, A., Meyer, U. (2019): The satellite-only gravity field model GOCO06s.https://doi.org/10.5880/ICGEM.2019.002