2PETRYSHYN W V. Fixed point theorems for vairous classes of l-set-contractive and l-bakk-contractive mappings in banach spaces[J]. Trans Amer Math Soc, 1973(1):323-351.
3CARLOS MARITINEZ-YANEZ. A remark on weakly inward contractions, Nonlinear Analysis[J]. Theory Mathods and Applications, 1991,16(10) :847 - 848.
4WEBB J R L. A-properness and fixed points of weakly inward mappings[J]. London Math Soc, 1983,27(2): 141 - 149.
