arxiv:1907.02107
%%% BibTeX

@Article{1907.02107,
 author        = "Kristof Petrovay",
 title         = "Solar cycle prediction",
 year          = "2019",
 eprint        = "1907.02107",
 archivePrefix = "arXiv",
 primaryClass  = "astro-ph",
}

%%% LaTeX

\cite{1907.02107}

%%% bibitem

\bibitem{1907.02107}
Kristof Petrovay,
%"Solar cycle prediction",
arXiv:1907.02107 [astro-ph].