Photometric and spectroscopic analysis of Comet 29P/Schwassmann-Wachmann 1 activity - Ivanova, Oleksandra V; Luk'yanyk, Igor V; Kiselev, Nikolay N; Afanasiev, Viktor L; Picazzio, Enos; Cavichia, Oscar; Almeida, Amaury Augusto de; Andrievsky, Sergei M (Planetary and Space Science, 2016)