Physical activity of the selected nearly isotropic comets with perihelia at large heliocentric distanceI. Kulyk, P. Rousselot, P. P. Korsun, V. L. Afanasiev, A. V. Sergeev and S. F. VelichkoA&A, 611 (2018) A32DOI: https://doi.org/10.1051/0004-6361/201731529