Kainulainen, J., Rautiainen, K., Sievinen, P., Seppänen, J., Rouhe, E., Hallikainen, M., Dall'Amico, J., Schlenz, F., Loew, A., Bircher, S., & Montzka, C. (2010). SMOS calibration and validation activities with airborne interferometric radiometer HUT-2D during spring 2010. In IEEE International Geoscience and Remote Sensing Symposium (IGARSS 2010): Proceedings (pp. 702-705).