Let $\mathfrak{g}$ be a semisimple Lie algebra. Let $U_h(\mathfrak{g})$ be the Drinfeld-Jimbo quantum group, i.e. the $\mathbb{C}[[h]]$-algebra topologically generated by $X_i,Y_i,H_i$ where $1\leq i\leq$rank of $\mathfrak{g}$ and the "usual" relations as in Kassel's book. Now, Kassel's book which I am reading is sketchy about two points I would like to know:

(1) $U_h(\mathfrak{g})$ is a topologically free $\mathbb{C}[[h]]$-module via PBW-argument.

(2) The universal $R$-matrix of $U_h(\mathfrak{g})$ is given by a complicated formula which should be written explicitly.

For both points, Kassel refers vaguely to Drinfeld with sentences as "Drinfeld proves" but I am unable to find anything by Drinfeld on quantum groups online. Whence, the question: Where can I find Drinfeld's original papers on quantum groups which should contain a detailed proof of point (1) and (2) above? PS. I don't read russian. It should be an English version.