Bacillariales aus Innerasien, gesammelt von Sven Hedin - Hustedt, Friedrich 1886-1968 (Lithographic Institute of the General Staff of the Swedish Army, 1922)
Cover title. - "Southern Tibet, discoveries in former times compared with my own researches in 1906-1908, by Sven Hedin ... Sonderabdruck aus vol. VI, part III, botany."