class VelocityClamp (Experiment):
"""Constant piezo velocity force spectroscopy [#rief1997]_.
- .. [#rief1997]: M. Rief, M. Gautel, F. Oesterhelt, J.M. Fernandez,
+ .. [#rief1997] M. Rief, M. Gautel, F. Oesterhelt, J.M. Fernandez,
H.E. Gaub.
"Reversible Unfolding of Individual Titin Immunoglobulin Domains by AFM."
Science, 1997.