We study operator-valued measures
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, where
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stands for the space of all continuous linear operators between real Banach spaces
X and
Y and
Σ is a
σ-algebra of sets. We extend the Bartle
x2013;
Dunfordx2013;Schwartz theorem and the Orlicz
x2013;Pettis theorem for vector measures to the case of operator-valued measures. We generalize the classical Vitali
x2013;Hahn
x2013;Saks theorem to sets of operator-valued measures which are compact in the strong operator topology.