Take care not to confuse the subtitle with the heading of the article's first section. The subtitle comes immediately after the article’s title, while the section heading is the title of a section within the body of the article.

The subtitle comes under the title and, while intrinsically related to it, is clearly separated from the title by a carriage return and/or different format and/or initial capital letter.

If the title contains one or more separators, for example, a colon, white space or period, such that it is not clear whether that which follows is a subtitle, we recommend to consider everything after the separator as an integral part of the title.

example 1

<titlegr>
    <title>L’interdisciplinarité ordinaire</title>
    <subtitle>Le problème des disciplines en sciences sociales</ssttitre>
</titlegr>

example 2

<titlegr>
    <title>Les rapports entre les âges : un enjeu de société</title>
    <subtitle>Entretien avec Solange Lefebvre, Faculté de théologie, Université
    de Montréal</subtitle>
</titlegr>