Tonica Bončina, Boštjan Markoli, and Franc Zupanič (2010). Determination of fracture toughness on hard particles embedded in a soft matrix using microindentation and electron microscopy. Practical Metallography: Vol. 47, No. 7, pp. 370-373. doi: 10.3139/147.110089 © Carl Hanser Verlag GmbH & Co. KG ISSN 0032-678X