Create a calendar link for Outlook Office 365 cale

Question

I can create a link that populates my Google calendar with information, like this...

<a href="http://www.google.com/calendar/event?action=TEMPLATE&text=MyEvent&dates=20150701T000000Z/20160305T000000Z&details=Test&location=Somewhere">Add to Google Calendar</a>

...which works fine. But how can I create one that does the same thing but works for web based Outlook Office 365 calendar? Information on how to do this is surprisingly scarce.