ID Hardcore/Techno/ Acid during of 90´s, can anyone help me?!

[23ztefan]

hey.

I search this tracks a long time, can anyone help me?! please

1. http://www.zshare.net/audio/86509318e28c38ae/
   http://www1.zippyshare.com/v/71342248/file.html

2. http://www.zshare.net/audio/8650952557611613/
   http://www1.zippyshare.com/v/54862658/file.html

3. http://www.zshare.net/audio/865095723d24b35d/
   http://www1.zippyshare.com/v/43009095/file.html

Thanks in advance
mfg Stefan