5 Flexibility and apertures, 6 Other information, 7 References
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2017 ◽
Vol 4
(1)
◽
pp. 41-52
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2008 ◽
Vol 35
(2)
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pp. 243-251
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2015 ◽
Vol 2
(2)
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pp. 77-84
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1970 ◽
Vol 14
(3)
◽
pp. 348-445
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