Yak-44E and Su-37-project

While I was searching thru the net …. I found some interesting pictures :

http://www.ussr-airspace.com/Site/p_pages/am013.htm
http://www.lindenhillimports.com/yak-44.htm

http://www.ussr-airspace.com/Site/new_indicies/aviation/su-37_suhoi.htm

Does anyony have some more Info, pictures or drawings of these projects ?

Thanks, Deino 🙂