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80 results on '"Semkov, E."'

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1. Optical variability of the blazar 3C 371: From minute to year timescales

5. Optical intra-day variability of the blazar S5 0716+714

7. Extreme photometric and polarimetric variability of blazar S4 0954+65 at its maximum optical and γ-ray brightness levels

8. Multimessenger Characterization of Markarian 501 during Historically Low X-Ray and γ-Ray Activity

9. The optical behaviour of BL Lacertae at its maximum brightness levels: a blend of geometry and energetics

10. Multiband optical variability of the TeV blazar PG 1553 + 113 in 2019

11. Rapid quasi-periodic oscillations in the relativistic jet of BL Lacertae

12. The multichord stellar occultation on 2019 October 22 by the trans-Neptunian object (84922) 2003 VS2

13. The complex variability of blazars: time-scales and periodicity analysis in S4 0954+65

14. The dual nature of blazar fast variability: Space and ground observations of S5 0716+714

15. Multiwavelength Variability of BL Lacertae Measured with High Time Resolution

16. International observational campaign of the 2014 eclipse of EE Cephei

17. Unraveling the Complex Behavior of Mrk 421 with Simultaneous X-Ray and VHE Observations during an Extreme Flaring Activity in 2013 April *

18. Optical Variability of the TeV Blazar 1ES 0806+524 on Diverse Timescales

19. Multiwavelength behaviour of the blazar 3C 279: decade-long study from γ-ray to radio

24. The beamed jet and quasar core of the distant blazar 4C 71.07

25. Characterizing Optical Variability of OJ 287 in 2016–2017

26. Optical Variability of TeV Blazars on long time-scales

27. Diagnosing the Clumpy Protoplanetary Disk of the UXor Type Young Star GM Cephei

28. AGILE, Fermi, Swift, and GASP/WEBT multi-wavelength observations of the high-redshift blazar 4C +71.07 in outburst

29. The ever-surprising blazar OJ 287: multi-wavelength study and appearance of a new component in X-rays

31. Blazar spectral variability as explained by a twisted inhomogeneous jet

32. Multiwavelength temporal and spectral variability of the blazar OJ 287 during and after the 2015 December flare: a major accretion disc contribution

33. Dissecting the long-term emission behaviour of the BL Lac object Mrk 421

34. A peculiar multiwavelength flare in the blazar 3C 454.3

36. Synchrotron emission from the blazar PG 1553+113. An analysis of its flux and polarization variability

37. Multiband optical variability of the blazar OJ 287 during its outbursts in 2015–2016

38. Exceptional outburst of the blazar CTA 102 in 2012: the GASP–WEBT campaign and its extension

41. Optical and radio variability of BL Lacertae

43. The WEBT campaign on the BL Lac object PG 1553+113 in 2013. An analysis of the enigmatic synchrotron emission

44. Nature of intranight optical variability of BL Lacertae

45. Multiband optical–NIR variability of blazars on diverse time-scales

48. Preliminary Photometric Results for the 2003 Eclipse of EE Cep

50. The awakening of BL Lacertae: observations by Fermi, Swift and the GASP-WEBT★

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