54.
"Remarks
on
Our
Paper:
'On
the Fundamental
Electromagnetic
Equations
for
Moving
Bodies'
"
and
"Supplement"
[Einstein
and
Laub
1909]
Dated
Bern and
Würzburg,
November 1908
Received
6
December 1908
Supplement
received
19
January
1909
Published
4
February
1909
In:
Annalen
der
Physik
28
(1909):
445-447.