@article{CM_1991__78_1_1_0, author = {Oledzki, Wies{\l}aw J.}, title = {On the eta-invariant of $\mathrm {Pin}^+$-operator on some exotic 4-dimensional projective space}, journal = {Compositio Mathematica}, pages = {1--27}, publisher = {Kluwer Academic Publishers}, volume = {78}, number = {1}, year = {1991}, zbl = {0725.57017}, language = {en}, url = {http://www.numdam.org/item/CM_1991__78_1_1_0/} }