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http://journals.cambridge.org/action/displayAbstract?aid=165623
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Ivo Babuška,
Uday Banerjee
and John E. Osborn
(2003).
Survey of meshless and generalized finite element methods: A unified approach. Acta Numerica, 12
,
pp 1-125
doi:10.1017/S0962492902000090