the term of forty years will hold,
as in the case of completely posthumous works.
Article 23. If the author were to die before
expiry of the time period for which he
may have happened to cede his rights, his
heirs are entitled, after expiry of this period, to
exert these rights during the whole term which
is granted to them by the preceding Articles.
Article 24. After expiry of the terms specified in
Articles 18, 19, 20, 21 and 22, works of
scholarship and art become public property.
The official documents published by
the signatory governments themselves, as well
as any works which are published by them directly or
by their order, if this fact is clear
from the work itself, are in future also
to be treated according to the stipulations
which apply for such cases in the respective
states.
Article 25. In order to facilitate the implementation
of the present treaty, the signatory
governments will make known to each other the
laws and directives which they may happen to
enact regarding literary and artistic property.
They will, moreover,