Carvalho, D. de S., de Oliveira, L. G., Winter, E., & Mothé, C. G. (2009). Technological Foresight Based on Citing and Cited Patents of Cellulose with Pharmaceutical Aplications. Journal of Technology Management & Innovation, 4(4), 32–41. https://doi.org/10.4067/S0718-27242009000400003