18.
"Discussion"
following
lecture version
of "The
Theory
of
Relativity"
[Einstein
et
al.
1911]
Published
12 April
1912
In:
Naturforschende
Gesellschaft
in
Zürich.
Vierteljahrsschrift 56.
Part
2, Sitzungs
berichte
(1911):
II-IX. Minutes of the
meeting
of
16
January 1911