Existence of Deuterium peroxide

Does deuterium peroxide exist? Wikipedia has no reference. Also, the sites for delivery of chemicals like "Pubchem" or "Chemspider" have no reference.

In my book, a preparation of $\ce{D2O2}$ is given,

$$\ce{K2S2O8 + 2D2O -> 2KDSO4 +D2O2}$$

If $\ce{D2O2}$ exist, what are its physical properties (structure and appearance etc.)?

• It does exist. A quick SciFinder search brings up around 50 papers, mostly dealing with rotational/vibrational spectra - don't know if larger quantities have been prepared. As for the structure: it's pretty similar to that of hydrogen peroxide, but has a slightly shorter O-D distance. Here is a reference for its structure. Jul 20, 2015 at 10:25
• It's simply deuterated H2O2 so of course it exists and is quite similar. Jul 20, 2015 at 16:17