diff --git a/dipdip-dirty/lrhankel_recspace_dirty.c b/dipdip-dirty/lrhankel_recspace_dirty.c
new file mode 100644
index 0000000..f1b2644
--- /dev/null
+++ b/dipdip-dirty/lrhankel_recspace_dirty.c
@@ -0,0 +1,123 @@
+#include "bessels.h"
+//#include "mdefs.h"
+#include <complex.h>
+#include <string.h>
+#define SQ(x) ((x)*(x))
+
+#define MAXQM 1
+#define MAXN 2
+#define MAXKAPPA 5
+
+typedef complex double (*lrhankelspec)(double, double, double, 
+		const complex double *,
+		const complex double *,
+		const complex double *,
+		const complex double *);
+// complex double fun(double c, double k0, double k, ccd *a, ccd *b, ccd *d, ccd *e)
+
+
+complex double fk5q1n0l(double c, double k0, double k, 
+		const complex double *a, const complex double *b, const complex double *d, const complex double *e) {
+	return (e[0]-5*e[1]+10*e[2]-10*e[3]+5*e[4]-e[5])/k0;
+}
+complex double fk5q1n1l(double c, double k0, double k, 
+		const complex double *a, const complex double *b, const complex double *d, const complex double *e) {
+	return (-d[0]+5*d[1]-10*d[2]+10*d[3]-5*d[4]+d[5])/(k0*k);
+}
+complex double fk5q1n2l(double c, double k0, double k,
+		const complex double *a, const complex double *b, const complex double *d, const complex double *e) {
+	double t = 2/(k*k);
+	return (     (e[0] - t*a[0] + t*d[0]*a[0])
+		-5 * (e[1] - t*a[1] + t*d[1]*a[1])
+		+10 *(e[2] - t*a[2] + t*d[2]*a[2])
+		-10 *(e[3] - t*a[3] + t*d[3]*a[3])
+		+5 * (e[4] - t*a[4] + t*d[4]*a[4])
+		-    (e[5] - t*a[5] + t*d[5]*a[5])
+	       )/k0;
+}
+complex double fk5q2n0l(double c, double k0, double k,
+		const complex double *a, const complex double *b, const complex double *d, const complex double *e) {
+	return 0; // FIXME
+}
+complex double fk5q2n1l(double c, double k0, double k, 
+		const complex double *a, const complex double *b, const complex double *d, const complex double *e) {
+	return (       b[0]*a[0]
+		  - 5 *b[1]*a[1]
+		  +10 *b[2]*a[2]
+		  -10 *b[3]*a[3]
+		  + 5 *b[4]*a[4]
+		  -    b[5]*a[5]
+	       )/(k*k0*k0);
+}
+complex double fk5q2n2l(double c, double k0, double k, 
+		const complex double *a, const complex double *b, const complex double *d, const complex double *e) {
+	return  (       b[0]*a[0]*a[0]
+		  + 5 * b[1]*a[1]*a[1]
+		  -10 * b[2]*a[2]*a[2]
+		  +10 * b[3]*a[3]*a[3]
+		  - 5 * b[4]*a[4]*a[4]
+		  +     b[5]*a[5]*a[5]
+		) / (k*k*k0*k0);
+}
+
+#if 0
+complex double fk5q1n0s(double c, double k0, double k,
+		const complex double *a, const complex double *b, const complex double *d, const complex double *e) {
+	return (p[0]-5*p[1]+10*p[2]-10*p[3]+5*p[4]-p[5])/k0;
+}
+complex double fk5q1n1s(double c, double k0, double k,
+		const complex double *a, const complex double *b, const complex double *d, const complex double *e) {
+	return ;
+}
+complex double fk5q1n2s(double c, double k0, double k, 
+		const complex double *a, const complex double *b, const complex double *d, const complex double *e) {
+	return ;
+}
+complex double fk5q2n0s(double c, double k0, double k,
+		const complex double *a, const complex double *b, const complex double *d, const complex double *e) {
+	return ;
+}
+complex double fk5q2n1s(double c, double k0, double k,
+		const complex double *a, const complex double *b, const complex double *d, const complex double *e) {
+	return ;
+}
+complex double fk5q2n2s(double c, double k0, double k,
+		const complex double *a, const complex double *b, const complex double *d, const complex double *e) {
+	return ;
+}
+
+static lrhankelspec transfuns_n[MAXKAPPA+1][MAXQM+1][MAXN+1] = {
+	{NULL,NULL,NULL},{NULL,NULL,NULL},{NULL,NULL,NULL},
+	{NULL,NULL,NULL},{NULL,NULL,NULL},{NULL,NULL,NULL},
+	{NULL,NULL,NULL},{NULL,NULL,NULL},{NULL,NULL,NULL},
+	{NULL,NULL,NULL},{NULL,NULL,NULL},{NULL,NULL,NULL},
+	{NULL,NULL,NULL},{NULL,NULL,NULL},{NULL,NULL,NULL},
+	{TODO,TODO,TODO},{TODO,TODO,TODO},{TODO,TODO,TODO}
+};
+#endif
+
+static lrhankelspec transfuns_f[MAXKAPPA+1][MAXQM+1][MAXN+1] = {
+	{{NULL,NULL,NULL},{NULL,NULL,NULL}},
+	{{NULL,NULL,NULL},{NULL,NULL,NULL}},
+	{{NULL,NULL,NULL},{NULL,NULL,NULL}},
+	{{NULL,NULL,NULL},{NULL,NULL,NULL}},
+	{{NULL,NULL,NULL},{NULL,NULL,NULL}},
+	{{fk5q1n0l,fk5q1n1l,fk5q1n2l},{fk5q2n0l/*FIXME*/,fk5q2n1l,fk5q2n2l}}
+};
+
+void lrhankel_recpart_fill(complex  double *target,
+               size_t maxn, size_t lrk_cutoff,
+               complex double  *hct,
+               unsigned kappa, double c, double k0, double k)
+{
+	memset(target, 0, (maxn+1)*sizeof(complex double));
+	complex double a[kappa+1], b[kappa+1], d[kappa+1], e[kappa+1];
+	for (size_t sigma = 0; sigma <= kappa; ++sigma) {
+		a[sigma] = (sigma * c - I * k0);
+		b[sigma] = csqrt(1+k*k/(a[sigma]*a[sigma]));
+		d[sigma] = 1/b[sigma];
+		e[sigma] = d[sigma] / a[sigma];
+	}
+}
+
+