<input name="author.name" ng:required>
<input name="author.surname" ng:required>
<input name="author.inst" >
-<input name="author.email" ng:required>
+<input name="author.email" ng:required ng:validate="email">
</div>
[<a href="" ng:click="work.symposium.organizer.$add()">Add another organizer</a>]
<input name="author.name" ng:required>
<input name="author.surname" ng:required>
<input name="author.inst" >
-<input name="author.email" ng:required>
+<input name="author.email" ng:required ng:validate="email">
</div>
[<a href="" ng:click="work.authors.$add()">Add another author</a>]