Winter, Franziska R.
Loidolt, Maria
Westphal, Volker
Butkevich, Alexey N.
Gregor, Carola
Sahl, Steffen J.
Hell, Stefan W.
Article History
Received: 18 November 2016
Accepted: 17 March 2017
First Online: 18 April 2017
Competing interests
: S.W.H. owns shares of the companies Abberior and Abberior Instruments GmbH, producing super-resolution STED dyes and microscopes, respectively.