FARWIG, R., NEČASOVÁ, Š., NEUSTUPA, J. On the essential spectrum of a Stokes-type operator arising from flow around a rotating body in the Lq framework. In: GIGA, Y., KOZONO, H., OKAMOTO, H., SHIBATA, Y., eds. Proceedings of the Kyoto Conference on the Navier-Stokes Equations and their Applications. Kyoto: Research Institute of Mathematical Sciences University, 2007, s. 93-106. RIMS Kokyuroku Bessatsu, Volume B 1. ISSN 1881-6193.