title: Editorial introduction to the special issue from G16 conference (2015): Research frontiers in chalcogen cycle science & technology.
authors.affiliation: UNESCO-IHE Institute for Water Education, Westvest 7, 2611 AX Delft, The Netherlands. Electronic address: e.raj@unesco-ihe.org.
authors.forename: Eldon R
authors.initials: ER
authors.lastname: Rene
authors.affiliation: Center for Biofilm Engineering, Montana State University, Bozeman, MT 59717, USA. Electronic address: robin_g@biofilm.montana.edu.
authors.forename: Robin
authors.initials: R
authors.lastname: Gerlach
authors.affiliation: Institute of Geotechnics, Slovak Academy of Sciences, Watsonova 45, 040 01 Košice, Slovak Republic. Electronic address: balaz@saske.sk.
authors.forename: Peter
authors.initials: P
authors.lastname: Baláž
authors.affiliation: Department of Pharmacy and BioTechnology (FaBiT), Microbiology Unit, via Irnerio 42, 40126 Bologna, Italy. Electronic address: davide.zannoni@unibo.it.
authors.forename: Davide
authors.initials: D
authors.lastname: Zannoni
authors.affiliation: UNESCO-IHE Institute for Water Education, Westvest 7, 2611 AX Delft, The Netherlands. Electronic address: p.lens@unesco-ihe.org.
authors.forename: Piet N L
authors.initials: PN
authors.lastname: Lens