Hello. 
I`ve got an expierence with theese guys http://geometricalthemej.blogerus.com/32236915/2021
http://geometricaldisquisitionb.dailyblogzz.com/13559913/????????-????
http://algebraicdiscoursev.blog4youth.com/12965245/????????-???????
  that were mentioned before. 
And I watned to say thanks!

AnthonyBress