S. Bouveret, R. Blanch, A. Baujard, F. Durand, H. Igersheim et al., Voter autrement 2017 -online experiment, 2018.

A. Baujard and H. Igersheim, Framed-field experiments on approval voting. Lessons from the 2002 and 2007 french presidential elections
URL : https://hal.archives-ouvertes.fr/halshs-00512525

, Approval Voting, vol.15, pp.357-395, 2010.

J. Laslier and R. Sanver, Handbook on Approval Voting, 2010.

, Column 37 Are you between 40 and 49 years old? ( 1=yes, 0=no) Column 38 Are you between 50 and 59 years old? ( 1=yes, 0=no) Column 39 Are you between 60 and 69 years old? ( 1=yes, 0=no)

, Column 48 Do you work in private sector? (1 = yes / 0 = no)

, Column 49 Do you work in public sector?

, Column 55 Did you vote for Nicolas Dupont-Aignan in the official vote? (1 = yes / 0 = no)

, Dis&approval voting, grade of Philippe Poutou Column 8 {?0.5, 0, 1} Dis&approval voting, grade of Jacques Cheminade Column 9 {?0.5, 0, 1} Dis&approval voting, grade of Jean Lasalle Column 10 {?0.5, 0, 1} Dis&approval voting, grade of Jean-Luc Mélenchon Column 11 {?0.5, 0, 1} Dis&approval voting, grade of François Asselineau Column 12 {?0.5, 0, 1} Dis&approval voting, grade of François Fillon Column 13 {?1, 0, 1} Dis&approval voting, grade of Nicolas Dupont-Aignan Column 14 {?1, 0, 1} Dis&approval voting, grade of Marine Le Pen Column 15 {?1, 0, 1} Dis&approval voting, grade of Emmanuel Macron Column 16 {?1, 0, 1} Dis&approval voting, grade of Benoît Hamon Column 17 {?1, 0, 1} Dis&approval voting, grade of Nathalie Arthaud Column 18 {?1, 0, 1} Dis&approval voting, grade of Benoît Hamon Column 6 {?0.5, 0, 1} Dis&approval voting, grade of Nathalie Arthaud Column 7 {?0.5, 0, 1}