Can anyone tell based on these photos which type of elm this is?

We can only offer suggestions based on the photos. If you compare the information in each link with the tree in question you may begin to see subtle differences that will help you to identify the tree.

This article has information about the U. laevis but also says there is a variety U. parvifolia in Serbia.
http://en.wikipedia.org/wiki/U...

Doing this quick research I learned that the samaras of some Elms are edible.

Thanks Greene!

I tried comparing with all the links posted, but I cannot seem to find tree that I can match to my tree.

You can exclude laevis, It has hairy packaging seeds, leaves is double toothy and the tip of the curved bottom, the underside of the leaves is hairy.

A little detective work might help. The Pannonian Basin ..

http://en.wikipedia.org/wiki/P...

Would Ulmus glabra be possible?

http://www.forestportal.sk/sit...

http://translate.google.co.uk/...

http://www.european-trees.com/...

probably glabra, maybe hybrid glabra
You cannot specify more precisely, don't see any details, leaves, hair, or ripe seeds

From what I saw , and I browsed most of the species, this is Elm Glabra.
(although it resembles certain chinese type as well, very much)
Thanks everyone

@bamira nailed it.

Makanudo said:From what I saw , and I browsed most of the species, this is Elm Glabra.
(although it resembles certain chinese type as well, very much)
Thanks everyone

You're welcome.