Národní úložiště šedé literatury Nalezeno 2 záznamů.  Hledání trvalo 0.00 vteřin. 
Long-term activity of the X-ray source QR And / RX J0019.8+2156
Šimon, Vojtěch ; Sobotka, P. ; Marek, P. ; Lehký, M. ; Šmelcer, L. ; Lomoz, Fr.
QR And has been monitored in the framework of the observational campaing which started in 1998. The authors resolved prominent variations of the orbital modulation which depend on the state of the long-term activity of the system.
Long-term variability of dwarf novae and soft X-ray transients
Šimon, Vojtěch
The results of analysis of Tc by the method of the O-C residuals is presented for a set of DN of various types and some SXTs.

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