Sentence:  Entitled 'On Several Mistakes of the Communist Party of Czechoslovakia', this document is broader, more theoretical and more rambling than the Polish equivalent, identifying deep problems in many spheres. But it does get in a few <WSD>digs</WSD> at Slánský, accusing him of having made mistakes in recruitment to the communist party. 
Meaning of the word marked with <WSD> tags:  A cutting, sarcastic remark; a jibe.