Katsen-Globa, A.; Schulz, J. C.; Baunach, J. S.; Ehrhart, F.; Oh, Y.-J.; Schön, U.; Kofanova, O.; Beier, A. J.; Wiedemeier, S.; Metze, J.; Shirley, S.; Spitkovsky, D.; Sachinidis, A.; Hescheler, J.; Zimmermann, H. Towards a Medically Approved Technology for Large-Scale Stem Cell Banks: Tools and Methods. Probl Cryobiol Cryomed 2008, 18, 468-478.