:H2.ABSTRACT
:xmp
Format&gml. &gml.ABSTRACT.
:exmp
:I2 refid='gtabstr' pg=major.gtabstr
:p.This tag signals the start of the abstract in the
front material of a GML document.
The abstract is optional, but must follow the title page
section if specified.
Basic document elements and heading levels two through six
(&gml.h2-&gml.h6) may be specified in the abstract.