5.
"Supplement
to
My Paper:
'Thermodynamic
Proof of
the Law
of
Photochemical
Equivalence' "
[Einstein
1912f]
Dated
Prague, May
1912
Received
12
May
1912
Published
12
July
1912
In:
Annalen
der
Physik
38
(1912):
881-884.