@Book{ KeYbook2:16, title = {Deductive Software Verification: Future Perspectives---Reflections on the Occasion of 20 Years of KeY}, editor = {Wolfgang Ahrendt and Bernhard Beckert and Richard Bubel and Reiner H\"ahnle and Mattias Ulbrich}, year = {2021}, volume = {12345}, series = {LNCS}, publisher = {Springer}, doi="10.1007/978-3-030-64354-6", url="http://dx.doi.org/10.1007/978-3-030-64354-6", }