(Q31165090)
Statements
Natural pollution caused by the extremely acidic crater lake Kawah Ijen, East Java, Indonesia (English)
Ansje J Löhr
Thom A Bogaard
Alex Heikens
Martin R Hendriks
Sri Sumarti
Manfred J Van Bergen
Nico M Van Straalen
Pieter Z Vroon
Budi Widianarko