DOC.
21
GENERAL RELATIVITY
107
Additional
notes
by
translator
{1}
The number
(13)
has
already
been
assigned
to
an equation
above.
{2}
The number
(15)
has
already
been
assigned
to
an
equation
above.
{3}
The number
(22)
has
already
been
assigned
to
an
equation
above.