User talk:Hirsch.im.wald

Welcome!

Hello,, and welcome to Wikipedia! Thank you for your contributions. I hope you like the place and decide to stay. Here are a few good links for newcomers: I hope you enjoy editing here and being a Wikipedian! Please sign your name on talk pages using four tildes (~&#126;); this will automatically produce your name and the date. If you need help, check out Where to ask a question, ask me on my talk page, or place  on your talk page and someone will show up shortly to answer your questions. Again, welcome! Deiaemeth 00:48, 22 February 2006 (UTC)
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Re: biological and social systems
there's a reply, Erkan Yilmaz 13:09, 14 February 2010 (UTC)