If the link wasn’t good enough for you, perhaps you need to read the encyclical itself.
http://www.vatican.va/holy_father/pius_xi/encyclicals/documents/hf_p-xi_enc_14031937_mit-brennender-sorge_en.html
Not many people are publically excommunicated, but even fewer have encyclicals directed against them, and exactly one has had an encyclical directed against him in the vernacular of his own country—sui generis treatment isn’t good enough for you?
For some, the only good link is an anti-Catholic link. Reference post #40 which purports David Kertzer, a pro-abortion and atheistic Communist as an authoritative source simply because he blames the Catholic Church for modern antisemitism.
Note that that same poster did not include the three antisemitic manifestos authored by Luther. Neither does it mention Calvin's Ad Quaelstiones et Objecta Juaei Cuiusdam Responsio, in which he states; "Their [the Jews] rotten and unbending stiffneckedness deserves that they be oppressed unendingly and without measure or end and that they die in their misery without the pity of anyone."
Anti-Catholicism is the incense pot from which the stench of lies emerges to permeate the Religion Forum.