Section V-27A: Special sessions.

  (1) The Legislature may be called into special session by a
written call for such purposes as may be specifically set out in
the call, signed by two-thirds (2/3) of the members of the Senate
and two-thirds (2/3) of the members of the House of
Representatives when it is filed with the President Pro Tempore
of the Senate and the Speaker of the House of Representatives who
shall issue jointly an order for the convening of the special
session.
  (2) Nothing in this section shall prevent the calling of a
special session of the Legislature by the Governor, as provided
by the Constitution of the State of Oklahoma.