共 27 条
- [3] [Anonymous], 2012, R LANG ENV STAT COMP
- [4] BirdLife International, 2004, BIRDS EUR
- [6] Brichetti P., 1997, MANUALE PRATICO ORNI
- [8] Christensen Rune, 2012, PACKAGE ORDINAL
- [9] The ecosystem approach from a practical point of view [J]. CONSERVATION BIOLOGY, 1999, 13 (03) : 679 - 681