A copy of this work was available on the public web and has been preserved in the Wayback Machine. The capture dates from 2022; you can also visit the original URL.
The file type is application/pdf.
Jules Jakob, Peter Püntener, Reto Zobrist. "Der Seelisberg-Strassentunnel: zur Eröffnung am 12. Dezember 1980." (1980)