2541
2542
2543
2544
2545
Published: 1896
Superior document: Transactions of the Texas Academy of Science 1,5,[7]
2546
2547
2548
Published: 1978
Superior document: Transactions of the American Philosophical Society 68,1
2549
2550
2551
2552
Published: 1967
Superior document: Acta Universtitatis Stockholmiensis : Stockholms studies in educational psychology 15
2553
2554
2555
2556
Published: 1994
Superior document: Varia 5
2557
2558
2559
Published: 1986
Superior document: Sonderdruck aus Archäologischer Anzeiger ; 1986
2560