关注微信公众号查券更方便
【4周达】Duality and Perturbation Methods in Critical Point Theory: - Duality and Perturbation Method... [9780521440257]
![【4周达】Duality and Perturbation Methods in Critical Point Theory: - Duality and Perturbation Method... [9780521440257]](/Public/skin2/static/tqkpc/images/grey.gif)