1
by Butterworth, S.
Published in JRSM (2004)
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2
...Butterworth, S...
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3
by Butterworth, S.
Published in BMJ (1954)
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4
by Butterworth, S.
Published in Physical Review (1924)
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5
by Butterworth, S.
Published in Notes and Queries (1923)
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6
by Butterworth, S.
Published in Notes and Queries (1923)
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7
by Butterworth, S.
Published in Notes and Queries (1923)
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8
by Butterworth, S.
Published in Notes and Queries (1922)
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9
...Butterworth, S...
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11
by Butterworth, S.
Published in Notes and Queries (1921)
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12
by Butterworth, S.
Published in Notes and Queries (1920)
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13
...Butterworth, S...
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14
...Butterworth, S...
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15
...Butterworth, S...
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18
by Butterworth, S.
Published in Notes and Queries (1916)
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20
by Butterworth, S.
Published in Notes and Queries (1915)
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