00549nam a2200157 a 450000500170000002000150001708200140003210000060004611000660005224500940011826000320021230000290024449000770027363000260035063000150037620251203091954.0  a0444854673  a530.8,bD  d_  aProceedings of International School of Physics "Enrico Fermi"  aMetrology and fundamental constants, Varenna, Italy. Scuola Internazionale di Fisica, eng  aNew YorkbNorth-Hollac1980  axxiv, 815 p.c24 cm.bPB  aProceedings of International School of Physics "Enrico Fermi"dCourse 68  aPhysical Measurements  acongresses