Periodica mathematica hungarica. 2005;51(1):61-78. doi: 10.1007/s10998-005-0021-9 Q30.52025
On the existence in a problem of the calculus of variations without convexity assumptions
关于变分 calculus 中一个无需凸性假设的问题的存在性
DOI: 10.1007/s10998-005-0021-9
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