@article{IM_1988__94_2_143621,
     author = {Stephan Stolz},
     title = {Exotic structures on 4-manifolds detected by spectral invariants.},
     journal = {Inventiones mathematicae},
     pages = {147--162},
     publisher = {mathdoc},
     volume = {94},
     number = {2},
     year = {1988},
     zbl = {0656.58032},
     url = {http://geodesic.mathdoc.fr/item/IM_1988__94_2_143621/}
}