In-focus electron microscopy of frozen-hydrated biological samples with a Boersch phase plate.
by Andreas, Walter
Barton, B., Rhinow, D., Walter, A., Schröder, R., Benner, G., Majorovits, E., Niebel, H., Müller, H., Haider, M., Lacher, M., Schmitz, S., Holik, P., Kühlbrandt, W., Ultramicroscopy, 111:1696-1705 (2011)