"Furthermore, in his influential siddur Seder Avodat Yisrael (Rodelheim , 1868, pp. 120-121), Rabbi Yitzhak Baer provides private prayers for those who missed Hatzi Kaddish, Barekhu and Kedushah, but not for the MK."
Source: https://schechter.edu/mourners-kaddish-alternatives/
I saw the variant of Kaddish of the Sorrowful for one in several versions, but I did not meet Hatzi Kaddish, Kedushah and Barekhu. Does anyone have their texts? I did not find Siddur Baer in online format.
And is there a version of the Burial Kaddish in the absence of a minyan?