The year 2013 has just begun, and we're very excited that the first article of this year "Spatial and seasonal variability of polygonal tundra water balance: Lena River Delta, northern Siberia (Russia)" is already published:

http://www.springerlink.com/openurl.asp?genre=article&id=doi:10.1007/s10040-012-0933-4

You can find all PAGE21 publications here.