Blanca, C. M., S. W. Hell: "Axial superresolution with ultrahigh aperture lenses". Opt. Express  10, 893-898
Schönle, A., S. W. Hell: "Calculation of vectorial three-dimensional transfer functions in large-angle focusing systems". J. Opt. Soc. Am. A  19, 2121-2126
Martini, N., J. Bewersdorf, S. W. Hell: "A new high-aperture glycerol immersion objective lens and its application to 3D-fluorescence microscopy". J. Microsc.   206, 146-151
Majoul, I., M. Straub, R. Duden, S. W. Hell, H. D. Söling: "Fluorescence resonance energy transfer analysis of protein-protein interactions in single living cells by multifocal multiphoton microscopy". Rev. Mol. Biotechn.  82, 267-277
Lang, T., M. Margittai, H. Hölzler, R. Jahn: "SNAREs in native plasma membranes are active and readily form core complexes with endogenous and exogenous SNAREs". J. Cell Biol.  158, 751-760
Kano, H., S. Jakobs, M. Nagorni, S. W. Hell: "Dual-color 4Pi-confocal microscopy with 3D-resolution in the 100 nm range". Ultramicroscopy  90, 207-213
Hell, S. W., C. M. Blanca, J. Bewersdorf: "Phase determination in interference-based superresolving microscopes through critical frequency analysis". Opt. Lett.  27, 888-890
Egner, A., V. Andresen, S. W. Hell: "Comparison of the axial resolution of practical Nipkow-disk confocal fluorescence microscopy with that of multifocal multiphoton microscopy: theory and experiment". J. Microsc.  206, 24-32
Egner, A., S. Jakobs, S. W. Hell: "Fast 100-nm resolution 3D-microscope reveals structural plasticity of mitochondria in live yeast". PNAS  99, 3370-3375
Dyba, M., S. W. Hell: "Focal spots of size lambda/23 open up far-field fluorescence microscopy at 33 nm axial resolution". Phys. Rev. Lett.  88, 163901 (4 pp.)
Blanca, C. M., J. Bewersdorf, S. W. Hell: "Determination of the unknown phase difference in 4Pi-confocal microscopy through the image intensity". Opt. Commun.  206, 281-285

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