The present invention relates to improved LCR amplification schemes using at least one downstream probe modified at its 5' end to reduce or eliminate target independent amplification. The different modified probes, and kits containing them are also presented. Also presented is a method for detecting...http://www.google.de/patents/US5573907?utm_source=gb-gplus-sharePatent US5573907 - Detecting and amplifying target nucleic acids using exonucleolytic activity