Diplomatic Documents of SwitzerlandVolume 3 (1873–1889)edited by Prof. P. Stadler, Universität Zürichbound, with dust cover, 16x24cm,1986. CX and 996 pages.CHF 150.–ISBN 3-7165-0553-4 Documents in Dodis Preface and introduction https://ghost.dodis.ch/res/doc/DDS-3-intro.pdf