The authors are separated by the command As usual, the class documentation reveals more details about the possible commands. To ensure this they often provide a template which defines the layout.
What is available for the title (for example emails, affiliation names, keywords) heavily depends on the template and highly differs between different journals. If they don't you should use the most basic concepts of La Te X titles described above.
You can prepare the titlepage in its own little document and prepare a one page pdf that you later include into your real document.
This is really useful, if the title page is required to have completely different margins compared to the rest of the document. Assuming you have done the title page of your report in an extra document, let's pretend it is called command is recommended. A simple example follows, as usual there is no real limit with respect to complexity.
The title is highlighted with large red all-caps text and a thin rule underneath separates it from the author name and publisher further down the page.
This title page template features a central vertical line which frames the rest of the text on the page.
It design is clean with the major feature being two horizontal lines highlighting the title.
The template contains code for an alternate layout without a supervisor name and for an institution logo at the bottom of the page.
This title page is useful for academic works such as assignments, reports, theses or books.
The headings can be used to neatly display the institute, course or subject matter of the work.