Estimation of the reconstructed part of the wolf series and the possibility of its correction.Published in:Solar System Research, 2008, v. 42, n. 1, p. 63, doi. 10.1134/S0038094608010073By:Shibaev, I.Publication type:Article
Three Comets Disappear.Published in:Journal of Education, 1926, v. 103, n. 21, p. 584Publication type:Article