title: Chemical contrast on a microphase-separated block copolymer surface observed by scanning force microscopy.
authors.affiliation: Polymer Chemistry Department and Materials Science Center, University of Groningen, Nijenborgh 4, NL-9747 AG Groningen (The Netherlands).
authors.forename: M P
authors.initials: MP
authors.lastname: Werts
authors.forename: E W
authors.initials: EW
authors.lastname: van der Vegte
authors.forename: V
authors.initials: V
authors.lastname: Grayer
authors.forename: E
authors.initials: E
authors.lastname: Esselink
authors.forename: C
authors.initials: C
authors.lastname: Tsitsilianis
authors.forename: G
authors.initials: G
authors.lastname: Hadziioannou