sources as very young pulsars. Secondly, [@tinyakov] investigated correlation between the positions of UHECRs propagated outside from Galaxy and of positions of specific type of blazars. They focused on possible identification of these blazars as UHECR sources and significant attention was payed also to analysis of clustered UHECR events.

Two other works propose the large Galactic magnetic halo with very intensive fields. The first article was published by [@ahn], they speculate about large and intensive purely azimuthal magnetic field in the Galactic halo. This field should exist as an analogy to a solar wind and should extend to about 1.5 Mpc. In spherical coordinates $r, \theta,
\phi$ it holds then $$B_{\phi} = B_S R \frac{\sin \theta}{r},$$ where $B_S R$ is the normalization factor derived from the values in the solar surroundings, which is equal to 70 $\mu$G.kpc. If such field is introduced, the positions of 11 out of 13 EHECRs from Haverah Park, Volcano Ranch, Fly’s Eye and AGASA should fall within 20$^{\circ}$ spherical cap around M87 position. This hypothesis was challenged shortly after its publication by [@billoir]. They proved that this at the face-value exciting fact, that M87 could be a single source of UHECRs, is simply based on 