Avila-Cano, Antonio; Triguero-Ruiz, Francisco (2024). "Concentration of political power: Can we improve its measurement?". Comparative European Politics. 22 (3): 389–407. doi:10.1057/s41295-023-00365-1. ISSN1472-4790.
Molinar, Juan (1 January 1991). "Counting the Number of Parties: An Alternative Index". The American Political Science Review. 85 (4): 1383–1391. doi:10.2307/1963951. JSTOR1963951. S2CID154924401.
Molinar, Juan (1 January 1991). "Counting the Number of Parties: An Alternative Index". The American Political Science Review. 85 (4): 1383–1391. doi:10.2307/1963951. JSTOR1963951. S2CID154924401.
Molinar, Juan (1 January 1991). "Counting the Number of Parties: An Alternative Index". The American Political Science Review. 85 (4): 1383–1391. doi:10.2307/1963951. JSTOR1963951. S2CID154924401.
Avila-Cano, Antonio; Triguero-Ruiz, Francisco (2024). "Concentration of political power: Can we improve its measurement?". Comparative European Politics. 22 (3): 389–407. doi:10.1057/s41295-023-00365-1. ISSN1472-4790.