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References from Weak and Partial Symmetries of Nonlinear PDE in Two Independent Variables. Local targets link to admitted publications; unresolved targets remain external evidence.
Unresolved reference
1969 · External reference
10.1007/978-94-017-3198-0
10.1007/978-94-017-3198-0 · 1993 · External reference
10.1016/0895-7177(93)90214-j
10.1016/0895-7177(93)90214-j · 1993 · External reference
Unresolved reference
External reference
Unresolved reference
1986 · External reference
10.1007/bf00046918
10.1007/bf00046918 · 1991 · External reference
10.1016/0375-9601(86)90534-7
10.1016/0375-9601(86)90534-7 · 1986 · External reference
10.1137/0147018
10.1137/0147018 · 1987 · External reference
10.1088/0305-4470/27/16/019
10.1088/0305-4470/27/16/019 · 1994 · External reference
Unresolved reference
1989 · External reference
10.2991/jnmp.1994.1.1.4 · Admitted local publication
