https://www.jongen.it/it/Corpi-fresa-Corpi-punte/Frese-a-gambo/Fresa-per-spallamento-retto-90/B18-Fresa-a-spallamento-retto-90-49/B18-DIN-1835-B-Weldon/90PP-40-48-49-4.html
Jongen negozio on-line | 90PP-40-48-49-4 | L'acquisto on-line Strumenti Jongen
90PP-40-48-49-4 - Fresa a gambo DIN 1835-B, a passo stretto
negozio on line
https://ucrisportal.univie.ac.at/de/publications/mapping-mountains-by-ernesto-capello-leiden-the-netherlands-brill/
Mapping mountains: by Ernesto Capello, Leiden, The Netherlands, Brill, 2020, 70 euros, 90pp., ISBN...