Sugerencias
Quizá quiso decir:
Hartmann, Nicolai, 1882-1950.
Meyer, Bertrand, 1950-
Khalil, Hassan K., 1950-
Binney, James, 1950-
Tremaine, Scott, 1950-
Esposito, Roberto, 1950-
Deutsch, Sandra McGee, 1950-
Kline, David, 1950-
Rivas, José Luis, 1950-
Dosse, François, 1950-
Heine, Steven, 1950-
Orwell, George, 1903-1950.
Laski, Harold Joseph, 1893-1950.
Calmels Duguet, Daniel, 1950-
Garton, Alison, 1950-
Pratt, Chris (Christopher), 1950-
Marx, Jutta, 1950-
Bryson, Jo, 1950-
Cauduro, Rafael, 1950-
Antunes, Murilo, 1950-