539.2
621.382
539.7
621.48 ≈ ZA.9
ZA.9
539.72
539.721
539.722
537.535
539.75
539.77
See also:
↑ 537.535 X and gamma rays electronics → 539.722 ↑ 621.382 communication engineering → 539.2 ↑ 621.48 nuclear engineering → 539.7 ↑ ZA.9 ≈ 539.7 MSC 82 pro parte
621.48
SciGator: explore University of Pavia libraries... — <http://scigator.unipv.it/indexe.php> : 2017.02.14 - 2024.11.12 - « <http://www-dimat.unipv.it/biblio/dewey.php> : 2015.06.18 - 2017