справочная страница GNU roff и руководство по стилю (GNU roff man page tutorial and style guide)
Смотри также (See also)
tbl(1), eqn(1), and refer(1) are preprocessors used with man
pages.
man(1) describes the man page librarian on your system.
groff_mdoc(7) describes the groff version of the BSD-originated
alternative macro package for man pages.
groff_man(7), groff(7), groff_char(7), man(7)
