Completion of the Preliminary Survey of Spitzbergen, Undertaken by the Swedish Government with the View of Ascertaining the Practicability of the Measurement of an Arc of the Meridian

C. Skogman
1863 Proceedings of the Royal Society of London  
doi:10.1098/rspl.1863.0104 fatcat:f7jkro2apnfsbcje2lvvz5wvfa