Title: Impact of Calculators on Mathematics Instruction, Author: George W. Bright
Title: The Didactical Challenge of Symbolic Calculators: Turning a Computational Device into a Mathematical Instrument, Author: Dominique Guin
Title: Microwave Circuit Design Using Programmable Calculators, Author: J L Allen
Title: The Didactical Challenge of Symbolic Calculators: Turning a Computational Device into a Mathematical Instrument, Author: Dominique Guin