no. 2
Periodic extensive measurement
Compositio Mathematica, Tome 23 (1971) no. 2, pp. 189-198. 
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     author = {Luce, R. Duncan},
     title = {Periodic extensive measurement},
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     pages = {189--198},
     publisher = {Wolters-Noordhoff Publishing},
     volume = {23},
     number = {2},
     year = {1971},
     mrnumber = {288654},
     zbl = {0215.34301},
     language = {en},
     url = {http://archive.numdam.org/item/CM_1971__23_2_189_0/}
}
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Luce, R. Duncan. Periodic extensive measurement. Compositio Mathematica, Tome 23 (1971) no. 2, pp. 189-198. http://archive.numdam.org/item/CM_1971__23_2_189_0/

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