Media type: E-Article Title: On the Sp�rer Minimum Contributor: Jiang, Yaotiao; Xu, Zhentao imprint: Springer Science and Business Media LLC, 1986 Published in: Astrophysics and Space Science, 118 (1986) 1-2, Seite 159-162 Language: English DOI: 10.1007/bf00651121 ISSN: 0004-640X; 1572-946X Keywords: Space and Planetary Science ; Astronomy and Astrophysics Origination: Footnote: Access State: Open Access