Hey guys can u help me here?

I am using the indirect function to get data from another workbook, but when I write thw whole path of the workbook it dosent work. What do I do wrong?

=INDIRECT("'C:\Users\abcd\Desktop\Test\[Test Trackingsheet2014.xlsx]TYC-011'!$D$90")

thanks for your help and have a nice weekend, this site is awesome.