How do physicists deal journals in other languages?

If you have a look at Feynman and Wheeler's:

Classical Electrodynamics in Terms of Direct Interparticle Action
http://prola.aps.org/pdf/RMP/v21/i3/p425_1

There are references to French and German journals. Is it really the
case that these two guys were multi-lingual?

How do physicists get around the problem of trying to read a journal
in another language they can't speak?

Larry

.