Perspectives on the Future of Ice Nucleation Research: Research Needs and Unanswered Questions Identified from Two International Workshops oleh Ivan Coluzza, Jessie Creamean, Michel J. Rossi, Heike Wex, Peter Aaron Alpert, Valentino Bianco, Yvonne Boose, Christoph Dellago, Laura Felgitsch, Janine Fröhlich-Nowoisky, Hartmut Herrmann, Swetlana Jungblut, Zamin A. Kanji, Georg Menzl, Bruce Moffett, Clemens Moritz, Anke Mutzel, Ulrich Pöschl, Michael Schauperl, Jan Scheel, Emiliano Stopelli, Frank Stratmann, Hinrich Grothe, David G. Schmale