00403nas a2200169   4500000000100000000000100001008004100002100002000043700001400063700001300077700001400090700001300104700001600117700001600133245007600149490000800225       2017                            d1 aM. De Laurentis1 aZ. Younsi1 aO. Porth1 aY. Mizuno1 aC. Fromm1 aL. Rezzolla1 aH. Olivares00aObservational signatures of spherically-symmetric black hole spacetimes0 v942