2009:

IETF proposed standard: Specification of the IP Flow Information Export (IPFIX) File Format
RFC 5655 October 2009.
B. Trammell, E. Boschi (Hitachi Europe), L. Mark, T. Zseby (Fraunhofer), A. Wagner (ETH Zurich).

IETF proposed standard: Sampling and Filtering Techniques for IP Packet Selection
RFC 5475 March 2009.
T. Zseby (Fraunhofer), M. Molina (DANTE), N. Duffield (AT&T Labs - Research), S. Niccolini (NEC Europe Ltd.), F. Raspall (EPSC-UPC).

IETF Internet draft: Flow Selection Techniques.
draft-ietf-ipfix-flow-selection-tech-02 June 2010.
T. Zseby (Fraunhofer), L. Peluso (University of Napoli),  S. D'Antonio (CINI), M. Molina (DANTE).
[New draft to be released in October 2010]