@inbook{https://resolver.caltech.edu/CaltechAUTHORS:20170531-173926630, title = "[1993] Proceedings IEEE Micro Electro Mechanical Systems", chapter = "In situ monitoring and universal modelling of sacrificial PSG etching using hydrofluoric acid", year = "1993", url = "https://resolver.caltech.edu/CaltechAUTHORS:20170531-173926630", id = "record", isbn = "0-7803-0957-X", doi = "10.1109/MEMSYS.1993.296954" }