APA (7th ed.) Citation

Paiva, A., Alves, F., & Campos, H. Exploring the locus of envelopes: An initial approach with GeoGebra. Instituto Politécnico de Viseu.

Chicago Style (17th ed.) Citation

Paiva, Ana, Franscisco Alves, and Helena Campos. Exploring the Locus of Envelopes: An Initial Approach with GeoGebra. Instituto Politécnico de Viseu.

MLA (9th ed.) Citation

Paiva, Ana, et al. Exploring the Locus of Envelopes: An Initial Approach with GeoGebra. Instituto Politécnico de Viseu.

Warning: These citations may not always be 100% accurate.