Improved single particle localization accuracy with dual objective multifocal plane microscopy Ram, Sripad ; Prabhat, Prashant ; Ward, E. Sally ; Ober, Raimund J. Abstract Publication: Optics Express Pub Date: April 2009 DOI: 10.1364/OE.17.006881 Bibcode: 2009OExpr..17.6881R