APA (7th ed.) Citation

Pisinger, D. (2007). The quadratic knapsack problem—a survey. Discrete Applied Mathematics, 155(5), 623-648. https://doi.org/10.1016/j.dam.2006.08.007

Chicago Style (17th ed.) Citation

Pisinger, David. "The Quadratic Knapsack Problem—a Survey." Discrete Applied Mathematics 155, no. 5 (2007): 623-648. https://doi.org/10.1016/j.dam.2006.08.007.

MLA (9th ed.) Citation

Pisinger, David. "The Quadratic Knapsack Problem—a Survey." Discrete Applied Mathematics, vol. 155, no. 5, 2007, pp. 623-648, https://doi.org/10.1016/j.dam.2006.08.007.