Citation: Fedorchuk, A.; Prots', Yu.; Schmidt, M.; Schnelle, W.; Burkhardt, U.; Grin', Yu.; Schwarz, U. (2003). Novel derivatives of the Ca In2 type of structure: Yb1+x Mg1-x Ga4 (0 <= x <= 0.058) and Y Li Ga4. Zeitschrift fuer Anorganische und Allgemeine Chemie, 629, pp. 2470-2478.